1. Don't take your normal address book - get a little one and add the people you'll want to send postcards to. You can also add all your new friends as you travel. If you loose the book, it won't mean loosing all your contacts. 

2. Tired of trying to figure out which key goes with which suitcase lock? Use a permanent felt marker to number the locks and their keys; matching them is a breeze. I keep one set of keys safely pinned inside my purse/carryall, and my husband keeps one set pinned inside his pants pocket. If there is a third set, it is pinned inside our carry-on luggage. 

3. Lint Brush Substitute - Instead of a lint brush, pack several of those clear plastic, adhesive air bill pouches used for Federal Express packages. They're flat, light and disposable, and they work very well. 

4. If you are traveling with children or the elderly, get a rolling carry-on. If you have rolling luggage, the carry-on can also strap on top of it. 

5. Use net laundry bags to put undies in after wearing. Ready to wash - and then makes sorting easier, especially if traveling with others. 

6. Always travel with a long piece of string in your pocket. It can be used to hold together your suitcase if the zip bursts, to create an improvised washing line, or to keep the kids happy playing cats cradle when a flight is delayed. 

7. You want to pack everything but can't. Make 3 piles: necessities, almost necessities and luxury items. Take all the necessities, none of the almost necessities and one luxury item. It will be all you need. See my book, 'Don't Quit Your Day Job: Adventures For The Working Stiff'. 

8. Line the bottom of your suitcase with a towel and when you have finished packing place another one on the top. This will prevent any clothes being torn should something happen to your case. Alternatively use your towels to split sections of your case ie: Nightwear, underwear, day clothes - which will make it easier to unpack. 

9. Uses For Zip-Lock Baggies - Take gallon-sized zip-lock baggies. The heavier duty the better. They are useful for packing things that may leak (such as shampoo, lotions, etc.) and you can use them once you get to where you are going for a variety of things. Some are: dirty diapers or muddy clothing when you are away from your room; to keep a clean change of clothes dry at the pool or the beach; to put your wet swimsuit in after you change into those clean, dry clothes. I'm sure you will come up with many more ideas yourself.