How to Buy a Bikini in Rio

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.

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.

Before traveling by taxi in foreign (or even domestic) locations, ask a local (perhaps stopping in shops to question the sales staff) what the approximate taxi fare would be to a particular location. They've always been pleased to help me. In this manner, I can avoid paying the inflated tourist rates!

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.

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.)

During the hot months of summer, I plan to travel with a very small spray bottle. I'll fill it with water and use it as a mister to keep cool. I got this idea when we stayed at the Noga Hilton in Cannes. On the dresser was a pink aerosol can full of Evian water. I took it with us sightseeing and, wow, it was so refreshing to spritz water on our faces.

To find a reasonably priced villa or apartment to rent, try going directly to the owner through a site such as abritel.fr. (Click on the British flag for English.) I arranged to spend two weeks in an apartment in Brittany and one week in an apartment in the Loire Valley, all for a total of $800.

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!

Before booking your next ski trip or reserving a table for dinner, find out what your credit card company has to offer. American Express sometimes has discounts on lift tickets; MasterCard has offered buy-one-get-one-free at local restaurants; and Discover Card has access to deals to Universal Studios. Check out americanexpress.com/offerzone, mastercard.com (be sure to click on Promotions), and discovercard.com.

At a theme park, tie a brightly colored scarf to the handle of your stroller before you enter a ride. When you return, you'll be able to quickly pick out your stroller from a sea of look-alikes.

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.

Though they're often the best deals around, don't assume that packaged vacations always offer the biggest bang for your buck. My wife and I were ready to book an air/hotel package to Maui when we noticed a sale on Aloha Airlines ($280 round trip from Oakland). I added up the total cost of the trip if purchased separately and saved $400 over comparable packages from various tour operators. We used the extra money to stay in a nicer hotel and to rent a convertible!

We've noticed that when booking a flight for our family under one reservation, some airlines will only credit the 1,500 bonus miles (500 for booking online, 500 each way for printing boarding passes) to the person whose name the reservation is under. This is regardless of whether the other family members have mileage accounts. To avoid this, make a separate reservation for each of your family members and then pick seats together.

Scuba-diving vacations can get expensive. As I start planning a trip, I call one of the local PADI dive shops and ask the employees about accommodations nearby. They give me hotel connections I couldn't find on my own, and I often save enough to pay for my dives.

Put a few plastic trash bags in the outer pockets of your suitcases and carry-ons. If you arrive at your destination and it's raining, you can cover your luggage with the bags while you make your way to your hotel. Just cut a slit for handles or straps.

Pick just two colors to mix and match throughout your trip. You'll cut down on luggage, not least because you won't have to bring a bunch of shoes to match a wide assortment of colors.

In order to keep track of my bags, I use a small metal bell--the kind dancers from India wear on their ankles. I thread it with fishing line and tie it to my carry-on. If anyone touches my bag after I set it down, the bell chimes. It's not a very obtrusive sound, but it's distinctive enough for me to notice if a thief is trying to get into my things. The same bell can be hung on the doorknob inside your hotel room.

If you arrive in a foreign city after banking hours (and you can't use an ATM), convert only the money you'll need for the night. Some exchange booths offer a less favorable rate after banks close and then switch back to competitive rates when banks reopen.

If you plan to leave a gratuity for hotel staff, follow our friend Phil's good advice: Give it at the beginning of your vacation, not at the end. He introduces himself to the housekeepers early in the trip and hands them a nice tip. Guess who always has plenty of coffee and fresh towels?

Baby wipes aren't just for babies. Slip a travel-size pack into your carry-on bag and use the wipes to kill germs on public toilet seats and in phone booths. In a pinch, they can also remove stubborn stains from clothing.

Before leaving for a vacation, I print out all our reservations and directions, and I create a contact sheet for emergencies. Then I gather all the papers together, punch some holes, and place them in a folder that has a middle section for three–holed papers. The side pockets hold brochures, business cards, ticket stubs, receipts, and maps that we collect along the way and want to bring home for our scrapbook.

When buying bottled water, look at the bottle cap to see if the seal is still intact. While visiting the Acropolis on a very hot day this summer, I caught a young boy refilling empty water bottles from a tap and recapping them. He was then selling the bottles to thirsty tourists.

It's often cheaper to buy a ticket to London and then fly onward within Europe via a regional low cost airline. Last summer, my husband and I bought consolidator tickets to London for $397. From there, we flew EasyJet to Nice for $72. The total cost was $469—much less than flying directly to Nice, plus we enjoyed a stopover in London.

If you visit a country where you don't speak the language, pick up a book of your hotel's matches or one of its business cards; they usually have the hotel's name and address printed on them. Then when you're out sightseeing and want to return to your hotel, show the matchbook or card to the cabdriver if he doesn't speak English.

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 unpacked a pair of black slacks recently to find them covered with white fuzz. I didn't have a lint brush handy, so I used the luggage sticker from my bag--the gummy side took the lint right off.

Instead of packing a complete shaving kit, my husband fills his wide-mouth Nalgene water bottle with items such as razors, spare contact lenses, eyeglasses, toothbrush, and so on. This turned out to be particularly useful on our trip to Costa Rica, where we also took the bottle on our day hikes to volcanoes and the jungle.

Before you buy expensive bottled water from your hotel room minibar, head to the fitness center. You'll be able to fill up an empty bottle at the gym's water cooler or fountain for free, and you don't need to break a sweat.

The couple of hangers provided on cruise ships aren't enough for weeklong trips. So I save wire hangers from the dry cleaner and slip a few into our suitcases while packing. I then leave them behind for the next passenger.

If you're traveling with a companion, pack half of your belongings in his or her suitcase and vice versa. This way, if one piece of luggage gets lost, you'll each still have some clothing.