Uncharted Isles

I always bring a small flashlight to hotels in case there's a blackout. The building may not be equipped with emergency lighting, and, if necessary, my flashlight will help me quickly locate the nearest exit.

If you're traveling solo and want some company for dinner, try the sushi bar at a Japanese restaurant. It's a great place to meet locals. Plus, you'll receive extra attention and special recommendations from the chef.

For overnight flights, pack a few Oral B Brush-Ups in your carry-on. Before the plane lands, you can "brush" your teeth, leaving you refreshed and ready for the day!

Carry a twist tie in your wallet. Among other ingenious uses, a twist tie can temporarily replace a lost screw on a pair of glasses. Just peel the paper or plastic off the tie so you have bare wire, insert it where the screw once was, and twist to tighten. Unlike Scotch tape or a safety pin, a twist tie is small enough to remain hidden and strong enough to hold until you're able to replace the screw.

I carry recipe cards with me to jot down interesting dishes I come across while on vacation. (I also like to use colorful postcards from the area I'm visiting and trim them to fit my recipe box.) Here's a wonderful dessert idea I brought home after spending a rainy afternoon with my husband in a London pub: Top a warm waffle with vanilla ice cream, maple syrup, and chopped pecans. It's heaven with a cup of hot tea.

When you travel to a beach destination, bring your own snorkel gear. We bought snorkels, masks, and fins at home for half-off (at an end-of-summer sale) before a trip to Hawaii. They didn't take up much room in our luggage, and we would have spent as much or more renting the equipment.

Bring a single-hole punch and lanyard on your next cruise. Once aboard, you can make a hole in your plastic key card and attach the lanyard, allowing you to carry the key around your neck. This is especially useful when your dress or slacks have no pockets. Just be sure to put the hole where it won't interfere with the card's magnetic strip.

When we visit places we think we might return to, we collect copies of free tourist magazines. At home, we write the address of each magazine on a postcard. Six to eight weeks before our return visit, we send out the cards asking for a current copy. The magazines are full of useful information.

Tell me I'm not alone: Almost every time I park my car at the airport, I have trouble finding it when I return. (I even reported my car stolen once after searching for hours, only to discover I was in the wrong lot!) I now use my cell phone to leave myself a message as to where I've parked my car.

When parking in a crowded garage, don't settle for the first space available on a lower level. It's probably a half-day hike from the elevator. Instead, drive to the upper levels, where you can usually park right next to the elevator. This tip was very useful in Las Vegas, especially when checking in and out of hotels with our luggage.

Place a coin over the veins on the inside of your wrist (about two finger widths from the base of your palm) and secure it in place with a rubber band or ponytail holder. The gentle pressure of the coin will stimulate nerves that control nausea, just like the motion-sickness bands that are sold at drugstores.

Before I visit poorer countries, I pop into a thrift store and pick up some toys, stuffed animals, and an old suitcase or carryall. I try to avoid toys like Easter bunnies or Santas, which could be offensive, and expensive things that might embarrass parents. The contents of my extra bag bring joy to countless kids who have never had a thing.

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.

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.

I always pack a Petzl Tikka Plus headlamp. It's small, weighs next to nothing, and is perfect for reading in bed at night without disturbing my husband. They're sold online and at outdoor-gear stores for about $33.

I enjoy off-peak travel best--rates are cheaper, lines are shorter--but the weather can be iffy. To combat Mother Nature's unpredictability, I always pack a roll or two of black-and-white film. While dreary-day color photos bring only consoling remarks from friends, black-and-white film tends to lend a mystique to gray landscapes and creates some very dramatic Ansel Adams--esque shots.

If your flight is canceled, don't just wait patiently in line to be booked on another flight; call the airline's 800 number. They'll answer your call faster, and you won't be waiting with other stranded passengers from that flight. (Or cover all bases by calling while in line.)

Consider asking your driver or tour guide to haggle on your behalf at bazaars and souks. (But don't let them lead you to places where they might have a connection to the shopkeeper.) The money you tip them will usually be less than the markup on prices for tourists.

Choosing a cabin is all about location, location, location. Check the ship's layout online before booking, and opt for a room with passenger floors above and below you. You don't want to try to sleep right under the disco, the casino, or the running track.

It can be difficult for parents to find a place to bathe their infant while on vacation. Showers obviously won't work, and the miniscule sinks generally found in hotel bathrooms aren't appropriate either. On our last cruise, we eliminated the whole problem by packing a small, inexpensive inflatable bathtub. (Ours cost only $7.99.) When we arrived, we blew it up and placed it in the bottom of the shower for an instant, safe baby bath.

Deli counters in grocery stores are great mealtime alternatives to restaurants or fast-food fare when you're exploring the United States. The food is fresh, there's a big variety (hot and cold), and economically, it's a great break. I recently had a complete hot meal, including beverage, for $3 from a grocery-store deli.

Make a master list of jobs to do around the house before you leave (hold the mail, water the plants, take out the garbage). Keep the list on your computer, print it out, then check off each job as it gets done. You'll be able to go without worrying that you forgot to stop the newspaper.

If you're looking for authentic street food--whether you're in New York or Bangkok--don't buy from the pitifully lonely vendor who has no customers. Head to the cart with the longest line of hungry people in front of it. Locals know which vendors serve the best (and safest) food. Even if you have to wait, your stomach will thank you.

On a trip to Molokai, the plane we were on was small, and luggage was crammed in every which way. At baggage claim, we noticed that someone had packed a bottle of Pine-Sol, and it had broken and leaked everywhere. Now we line our suitcases with garbage bags to protect our clothes—just in case. (It's also smart in case your bag gets left on the tarmac in a downpour.)

I used to lug around a clothes steamer and adapter to stay wrinkle-free while on the road, but I've since opted for something more low-tech. I now travel with a Platypus collapsible bottle and a spray bottle head. After checking into my hotel, I immediately hang my clothes and give them a spritz with water from the spray bottle. After several hours, the wrinkles fall out, and the clothing is dry and ready to wear.

Treat yourself to a golf-ball foot massage. During a long flight, or afterward in your hotel room, take off your shoes, put a golf ball on the floor, and roll it under your foot. It's a great stress reliever. Practice a bit before you try it on a plane, so that your ball doesn't go rolling down the cabin, tripping up unsuspecting passengers.

Priceline was a total pig in a poke for me, so I never used the web site, until I found out about biddingfortravel.com. This helpful Web site gives potential bidders an idea of prices that are being accepted (and declined) on priceline.com for particular dates and properties (or airfares or car rentals). I got the Hyatt Regency Miami for $35 per night because of this!

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.

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.

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.