When Everybody's an Expert, Who Can You Trust?

We rented a car last summer to tour northern Italy. Initially, we contacted Europcar (europcar.com) and got a quote of more than $500. We then clicked on a rental-car link from Best Fares (bestfares.com) and received an offer that knocked off about $50. When we mentioned to Europcar that we'd seen lower offers on the Web, they told us that if we sent them the URL and they could verify the offer, they'd match it. We eventually found a car that was an additional $100 cheaper from a British company. Europcar-which offered better service for our itinerary-accepted that lower price, saving us $150.

Disposable-camera lenses scratch just like any other lens would. Place a small piece of painter's tape (or another kind that won't stick too much) over the lens to protect it from contact with other items in your purse or backpack during travel.

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.

When overseas, I carry a "cheat sheet" that includes exchange rates and metric conversions. Currency conversions are available at oanda.com.

If your children are old enough to dress themselves, consider this packing tip: Put each outfit (including socks and underwear) into a Ziploc bag and pack one bag for each day you'll be on vacation. It will save both time and aggravation, and may even prevent items from getting left behind.

It's unnecessary to make a packing list for each trip. Instead, draw up a master list with everything you might need on any given trip--from ski goggles to snorkels, slippers to saline solution. Save it on your computer. Before you start packing, cross out anything you don't need for that particular trip.

Pay close attention to those newsletters enclosed in your frequent-flier statements. They usually contain special offers and promotions that can earn you double or triple miles if you stay at a certain hotel or eat at a certain restaurant.

When my husband and I travel, we take at least three different credit cards. I carry one he doesn't have, he carries one I don't have, and we both bring our primary card. If one of us has our wallet stolen, we can cancel two cards and still have one to use. We each have different ATM cards, too--useful if a machine doesn't honor one of the cards, or if we need more cash than our daily limit allows.

Give your children a coach's whistle in case they get lost; put it on a ribbon so they can wear it around their neck. The piercing sound may be annoying, but you'll definitely find them quicker!

If you're packing a lunch to eat later in the day, freeze a 16-ounce water bottle and pack it, along with yogurt, cottage cheese, a ham sandwich, or whatever in a light- weight, insulated bag. Your snacks will remain cold, and you can drink the water.

You won't always save by bringing the rental car back early. Alamo has an early-return policy at all of its locations, designed to discourage customers from returning cars early. If you show up at the lot a day or two ahead of schedule, Alamo will recalculate what you owe them at the daily rate; if it turns out to be less than what you would have paid for the week, they'll charge a $15 fee. Yet another reason to read the fine print on your contract carefully!

Bungee cords make versatile travel accessories. They come in handy at the airport for lashing a duffel bag to a wheeled suitcase. They can be hooked together and used as a clothesline for swimsuits, towels, etc. On skiing trips, hook them onto ski boots to create carrying handles. While camping, use them to secure tarps, to suspend a lantern from a nearby tree limb, or to secure items in a canoe. They even hold your pants up if you misplace your belt.

My husband cut an old contact lens case in two and uses the halves to carry his medication when we're traveling. He prefers them to regular pillboxes because lens cases are watertight and compact enough to carry inside a shirt pocket.

Even if you're staying at a standard resort hotel, take advantage of the day passes sold by many all-inclusive resorts (i.e., the right to use their facilities--such as swimming pools and beach chairs--and enjoy their meals for a day). The passes are primarily designed for cruise passengers on day trips but can be obtained by anyone for very little money. For persons staying in a less-expensive, no-frills hotel, it can give you the experience of a larger, more extensive resort for a day or two.

Using your frequent-flier miles, you might be able to visit two cities on one ticket. For example, my wife and I always trade in our Delta miles when we visit our daughters in Dallas and San Francisco. Because we have to fly through Dallas to get to San Francisco on Delta, we can stop over in Dallas for as long as we want before continuing on to San Francisco—and we use only one frequent-flier ticket each.

When traveling with my kids, I bring a Ziploc bag that includes four things: Benadryl, children's ibuprofen, one of those little medicine cups, and a thermometer. This all-purpose kit will help with minor ailments, or treat a more serious flu until you can get to a doctor. Best of all, it saves Dad from driving around at 2 a.m. looking for an all-night pharmacy.

I switch from street shoes to flannel-lined moccasins at the airport. It saves time at the security checkpoint, and I'm comfortable during the flight. Once I land, I switch back to my street shoes.

We like to buy shipboard souvenirs, so we try to choose a ship that's completing its run of an area--that's when merchandise is generally put on sale. Last year, for example, on a sailing in South America, all of the T-shirts, glassware, and rain jackets were 75 percent off.

By the time I got home from my first trip to Europe in 1963, I'd collected menus from several restaurants I liked. I threw them into a box. In 1988, I returned to Europe and went to the Middle East. Once again, I picked up a few menus. This time I had them all framed and they now hang in my kitchen. Since then, I've added to the collection. It's fun looking at the prices and remembering the good times—plus they make great conversation pieces when I have a party.

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.

Love researching your destination online, but don't know how to organize all those printouts, maps, guidebooks, and tips? I get a 5 x 7" spiral notebook (Mead makes one with a sturdy cover and a pocket insert), a set of index tabs, and some glue. Divide the notebook into sections with the tabs (sights, maps, currency converter, restaurants, etc.). Photocopy—in reduction mode—all the info you want to bring, and glue it into the appropriate section. I leave plenty of pages for my journals. This creates an all-in-one personal guide that you can read again years after your trip!

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.

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.

A company called Orikaso makes brightly colored polypropylene sheets that can be folded--kind of like origami--to form a dish, bowl, or cup. The sheets are lightweight and reusable, and you simply flatten them when you're finished. We found ours at a sporting goods store, but you can also buy them online. Check orikaso.com for retailers.

If you're stranded overnight at an airport and receive a "distress rate" voucher, call the hotel of your choice before blindly following the airline's suggestion. You may find that for that discounted rate (or a few bucks more) you can stay in a hotel with a lot more amenities than the one the airline would put you in. After a long, mishap-filled trip, anyone can appreciate a really good mattress, a top-notch restaurant, and an indoor swimming pool.

Recycle the long plastic bags in which you receive your home-delivered newspapers. Slip your shoes into the bags before packing them in your suitcase.

Just before I go through airport security, to save time and to avoid leaving something important behind, I collect all loose items--change, money clip, belt buckle, pens--in a large Ziploc bag. I send the bag through the X-ray machine with the rest of my luggage. After picking it up at the other end, I put the things back in place and either toss the bag or keep it for the return trip.

Try to book the first flight out in the morning, because those planes often arrive at the airport the evening before. You won't have to rely on an incoming plane, which could be delayed or canceled due to bad weather elsewhere, resulting in your own flight being delayed or canceled.

It's easy to lose track of time in a windowless interior cabin. Before going to sleep, tune into the ship's bridge-camera channel for real-time videos of the front (or bow) of the boat. The screen will act like a virtual porthole, and you'll rise and shine with the sunrise.

Paper place mats can be useful anywhere there's an outdoor shower. By stepping onto a place mat after a bush shower in Botswana, I managed to keep my feet clean and avoided getting dirt in my clothes.