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Even if your foreign destination says it will accept other ID than a passport, get a passport.
Keep a journal while traveling, even if you don't do it at home. The key is not to pressure yourself to make every entry too "deep," or write about every day/hour/event. Just jot a few things down you're inspired to remember. By the end, you'll have record of all the places that are most important to you . . . and likely some interesting, thought-provoking entries, too.
If you let your husband bring his bicycle along on your vacation and to go out on it for hours at a time, he'll go anywhere with you.
If you plan a family reunion for 50 relatives, half the family will think the place is too expensive and the other half will think the place is a dump.
If you pack black pants, bring a lint roller.
Buy an E-Z Pass. No more waiting in long toll-booth lines on I-95!
If you are driving in Italy and looking for a particular town, just keep driving, even if the town name disappears from the signs. It will always pop up 10 or 15 miles down the road again on another sign. And if something looks to be two hours away on a map, it's really four. And it's totally worth it.
Use compression bags to pack your clothing. They allow you to eliminate all the air in the packed bag and save space in the suitcase. Plus the bag is clear, permitting screeners full view of the articles.
Christmas carols sung by American Airline gate attendants over the PA system at Chicago O'Hare during a period of severe delays over the holidays is not as calming as one might think.