Send in the Clowns

If your tablecloth is wet at dinner, you should prepare for rough seas. Restaurant staffers have been known to slightly dampen the tablecloth to keep plates and glasses from sliding.

Use an empty M&M's Minis tube to carry quarters. The top holds tightly, but still pops open easily enough, and the size is perfect to slip into a car door or bag. I find it very useful when traveling by car (for tolls and parking meters) and by airplane (for luggage carts or newspapers).

Using restaurant.com, you can buy gift certificates good at eateries in your destination city, regularly snagging (in my experience) $25 certificates for as little as $5 to $8.The site is awesome, and it works as well for restaurant certificates in your own city and for obtaining gifts for friends.

Before you head to the airport, make a list of all the items in your checked luggage that would be prohibited in your carry-on. If an item (such as a knife for a picnic) makes its way into your purse or daypack during your travels, it should be accounted for when repacking and put into the checked piece to avoid hassles at airport security.

Read the fine print on your rail pass. You can often use it to save money on other modes of public transportation. With a Scandinavian rail pass, for example, you'll pay less to ride the ferries. In Switzerland, a rail pass can get you free bus rides, as well as complimentary entrance to museums and discounts on funiculars and hotel accommodations.

When I go on a trip that requires me to accessorize a number of outfits, I buy little Ziploc bags and place the appropriate jewelry/panty hose/scarf inside. Then I punch a hole just big enough to slide the bag over the outfit's hanger. This way, my panty hose stay snag-free and my jewelry never gets misplaced.

Whenever I'm in a country where drinking or brushing my teeth with the tap water is a risk, I cover the faucet handles in my hotel bathroom with a towel. As a result, I never accidentally turn on the faucet when I'm half asleep.

An extra contact lens case holds enough toiletries for a short trip. Squeeze a few dabs of toothpaste into one side and perhaps some facial cleanser or moisturizer in the other side. Just the right amount of each will fit for your overnights or weekends away.

Pack light, or that great deal you found on airfare won't seem that great. On a Ryanair flight between Glasgow and Dublin, my husband and I were charged over $100 for excess baggage weight (the airline tickets themselves cost less than half that). Be sure to check the weight limits—especially on low-fare airlines—before you leave home.

In North American cities with large Chinese communities, choose a family-run Chinese restaurant and ask for the set family meals, usually written in Chinese. They are more authentic than those typically offered to tourists and people who are not Chinese—not to mention a better value. In San Francisco, for example, you can enjoy a five-course meal, which easily feeds a family of four, for less than $20.

When looking for the lowest airfare, I've found that in some cases the best rates pop up when searching for one traveler instead of two. Recently, I wanted to buy one-way tickets from New York to Orlando for two people and came up with $87 per person. But when I selected one traveler, the fare dropped to $72.

Some cruise lines offer discounts on a future sailing if you book it while on a current cruise. Back home, you can transfer the booking to your travel agent and work with them to try to lower the price even further. You'll be able to cancel your booking at no cost if you follow the cruise line's cancellation schedule. This is a great way to get some of your onboard expenses paid for in advance.

Anyone traveling with multiple electronic devices (laptops, PDAs, cell phones, digital cameras, MP3 players) can easily confuse all the accessories that come with them. To keep all battery chargers, USB cables, media cards, and owner's manuals safe, dry, and organized, place them in individual Ziploc bags. You can put a label inside the bag to identify the contents, and one label wrapped around each cable to identify it.

In areas where the majority of people don't speak English, head to an Internet café. In our experience, they're full of friendly young people anxious to practice their English.

Don't be afraid to go to a foreign pharmacy. I forgot to pack my prescription medication on a recent trip to France. When my problem acted up, I went to a local pharmacy. (Look for the green cross.) The pharmacist provided my medication without a prescription and at a fraction of what it would have cost in the United States. In fact, one could benefit by stocking up abroad on medications that would normally be acquired at home at a much higher price.

If the porters haven't delivered your luggage to your door by the first night of the cruise, check what our experts call the "naughty room." Security will store any bags containing contraband (like candles, alcohol, or coffeemakers) in this centralized location until you come claim it. You'll be able to pick up your bag on the first night, but banned items will not be returned until the end of the trip.

I teach a Tulane University seminar on independent European travel for first-timers. Until recently, I advocated Europe's great rail networks as the way to go. Now, with the plethora of budget airlines, I recommend a combination of the two. But it makes the planning stage—which I find almost as much fun as actually taking the trip—more involved. Thank goodness for whichbudget.com, a Web site that lists, by city, which budget airlines serve which cities. Then, to find links to all of Europe's state railway Web sites, visit railfaneurope.net. Each site generally features a travel planner and, almost invariably, an English-language option.

Don't rush off the car-rental lot. Before driving away--especially in foreign countries where the controls might be unfamiliar-test the headlights and brakes, and look for the extra tire and changing tools. I once had a rental with malfunctioning brakes in Mexico and caused a minor accident--one that could certainly have been avoided had I checked them properly before leaving the lot.

Before leaving on a trip, I print the names and addresses of my friends and family onto clear mailing labels. (All standard word-processing programs have preset templates for creating address labels.) Then, I take the address-label sheets with me on vacation. Since the addresses are already saved in my computer and the mailing labels are adhesive, addressing postcards has become really easy.

Before I embark on a trip, I cover the dirt of my potted plants with plastic bags after watering them well. (Cut a few slits in the bags and keep plants out of direct sunlight.) The soil will stay damp for about three weeks.

While traveling abroad, I've frequently encountered some appallingly bad (and often very funny) English translations of menus. In those cases, I simply offered to clean up the translations in exchange for a meal. This has worked quite a few times.

When renting a car, photograph any damage the car may have before leaving the rental agency; a digital camera records the date and time of each picture. On a recent trip to Argentina, I rented a car with extensive paint damage. When I returned the car, the agency attempted to blame me for the scratches. I showed them my photographs, and they rescinded their accusations.

We all know to avoid drinking tap water in certain countries, but remember to forgo ice cubes, too. I've started bringing along two ice trays, which I fill with bottled water and freeze in my hotel room's mini-fridge.

If you're divorced and plan to travel out of the country with your children, check the legal requirements in advance. When I tried to take my kids to Cancun, I learned too late that Mexico requires a notarized letter of consent signed by both parents for minors traveling alone or with one parent or guardian. If the parents are divorced, a copy of the parental custody agreement is allowed instead. The airlines enforce this rule before you get on the plane.

Water-bottle holsters are good for more than holding water. I own several Water Bottle Totes by Outdoor Research (orgear.com). With their Velcro-like straps, I can fasten them anywher--to my belt, camera strap, fanny pack, purse, or airplane seat. I've used them at various times to carry my camera, binoculars, snacks, umbrella, battery-powered fan, flashlight, sunglasses, a windbreaker, and a rain poncho.

Pack a power strip and extension cord for your next cruise. Many cruise-ship cabins have only one out- let, but you'll definitely need more if you want to power up your laptop, iPod, cell phone, electric razor, hairdryer, or any other gadgets you bring on board.

I started saving the heavy-duty plastic wrappers that sheets and curtains come in. Most have zippers or snaps, great to hold everything from toiletries to shoes to wet swimsuits. And I bet airport security must love them because they're see-through.

When we come home at night, my wife and I each take a dollar from our wallets and put them in a special spot. We deposit what we've collected into a travel account at our bank every few months, so at the end of a year, we have $730 toward our next vacation—not counting interest.

Try getting a discount on your hotel room by offering to pay in cash. A hotel reservationist suggested this approach when I phoned to reserve at a hotel in London. I asked if the hotel could grant a discount based on my AARP or AAA membership, as many hotels do in the United States. Her response was that the only discount she was able to offer was 10 percent if I paid in cash.

Easily packable, local specialty foods make great gifts for family and friends at home. At the huge Safeway in Kihei, Maui, we found a great selection of chocolate-covered macadamia nuts and Kona coffee beans in elegant gift boxes for far cheaper than in tourist-oriented shops. European grocery stores abound with gift ideas: British teas, French mustards and vinegars, and Italian olive oils are just a few examples. Just bear in mind that meats, produce, and other fresh items are a customs no-no.