Europe: Day 4, Paris

As a flight attendant, I'm always amazed by the stuff that people leave behind. Most of it never gets back to its rightful owner because there's no way of knowing who the owner is. To avoid misplacing your property, put things back into your carry-on after using them--never on the floor or in the seat-back pocket. Label important items like books or games with return address labels so they can be sent back to you if found.

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 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.

My daughter and I bought disposable digital camcorders at a CVS pharmacy before going to Europe. It was a nice way to document our trip--each camera stored about 20 minutes of video. Once home, we dropped the cameras off at the pharmacy. The next day, our DVD was ready. We were very pleased with the quality and the cost: $30 for the camera and $13 for each DVD.

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.)

Before you book a room over the phone, peruse the hotel's site for its "Web only" rate. It's often cheaper than the best quote you'll get by calling. Recently, over the phone, I was quoted a daily rate of $129. I booked the same room online for $89.

Everyone knows that duct tape is great for helping out in travel emergencies, but no one wants to lug around a bulky roll of the stuff. By wrapping a few feet onto a pencil or ballpoint pen, you'll get a miniature roll that does not take up much in the way of additional space.

Know your PINs! My husband and I left home with very little cash on us, and instead of stopping to get money at the airport, my husband--ever the procrastinator--decided to wait until we got to Cancún to use his ATM card. Guess what? It didn't work in any of the machines. And although he had several credit cards for cash advances, he didn't know the PINs off the top of his head. We charged everything we could during our stay, but most of the markets don't take credit cards. Needless to say, I didn't come home with a lot of souvenirs.

Pack a couple of mountaineering carabiners. Clip one through the handle or strap of your bag and secure it to something solid wherever you may be (to a bench in the park or in a train station, to the railing of an overhead compartment on a bus, etc.).The carabiner adds a bit of security, especially if you're snoozing.

Grab-rails and nonskid surfaces aren't common in European bathtubs and showers. I pack a few decorative rubber pads that have non-adhesive suction cups, so I can use them when needed to prevent a slip or fall, and then I take them with me to the next hotel.

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.

In order to provide any reimbursement for a lost suitcase, most airlines and insurance companies require an itemized list of exactly what was inside it. Unfortunately, remembering everything you packed after the fact is virtually impossible. To avoid the headache, take pictures of the items you're going to put in your suitcase with your digital camera or cell phone. The photos will make creating the list a breeze, and, in the event of a dispute with the airline or insurance agent, you have some visual evidence of ownership.

If you're traveling with someone, discuss a central meeting place in case you get separated. My husband and I were in Paris waiting to board the Metro. He was able to board the train, but I was left behind on the platform. Having a plan saved both time and needless anxiety.

I travel with a mailing tube in my suitcase because I often buy paintings, drawings, and maps. My souvenirs always arrive home safe and sound. I just leave the mailing tube in my suitcase until the next trip.

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.

If you've accumulated more souvenirs on your trip than you can carry, drive your rental car up to curbside check-in, then return the vehicle and come back on the shuttle bus with only your carry-on. This only works if there's no check-in line, but can save dragging your luggage onto the shuttle bus, across parking lots, etc.

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.

Once the hotel shampoo bottles I always seem to bring home are empty, I refill them with my own brand of shampoo, conditioner, and shower gel--instead of buying travel-size containers at the drugstore. I toss them, along with other small items (toothbrush, toothpaste, nail file, pillboxes, and a comb), into a medium-size Ziploc bag, and I'm ready to go; the clear plastic lets me find things easily.

Cruise lines offer packaged side trips at their ports of call. If you go online and look for these expeditions ahead of time, you can book directly with the tour companies and save money.

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.

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.

You can suspend more than your newspaper when you're away. On several occasions, DirecTV has agreed to put my account on hold while I was traveling--without penalties, additional fees, reconnection charges, or the like. So, instead of a monthly bill of $65, mine gets prorated.

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.

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.

Restrooms abroad rarely have hooks on stall doors. Our solution: Pack a small S hook in your shoulder bag and make use of a hole in the wall, a pipe, etc., to hang purses, jackets, or anything else you want to keep off the floor. S hooks can be found in most hardware stores, near the screws and bolts.

A simple but effective anti-pickpocketing measure is to fasten a safety pin across the opening of the pants pocket on the inside. Leave enough room to pull your wallet out with some effort, but not enough for a quick hand to lift it in a second or two.

If you're headed to a country that requires a visa, ask the consulate of that country, in the United States, whether visas are also issued at the airport there on arrival. In many cases (like Turkey and Egypt), they are. Obtaining the visa on arrival is a much simpler procedure and a real money-saver: You do not have to have photographs taken (they figure your passport already has a photo), you do not pay a hefty fee to the U.S.-situated consulate of the country, you avoid the expense and risk of mailing your passport to that consulate in advance of departure, and you avoid the expense of using a visa-acquiring company in the United States. But be sure the consulate is correct that the visa can easily be obtained on arrival.

I used a well-known travel site to price tickets for a trip to Las Vegas. The flight I wanted was available, but I decided to wait to see if prices would come down. That flight stopped being listed after a week, and the next best flight kept getting more expensive. About five weeks later, I checked prices from a different PC. Whaddya know? The original flight was available, for $50 less than that next-best flight. That same evening I checked again from my PC. The flight I wanted was not available,so I deleted the cookies for the site and tried again. Voilà! The flight I wanted at the price I wanted. Moral of the story: Clean up your cookies—it could save you money!

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

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.