Regret-Proof Your Summer: 11 Ways to Ruin a Vacation

Watching TSA Security Take Your Kid's Favorite Toy Away

You know not to bring a bottle of water on the plane, but airport security has a way of finding things you'd never even think would be a problem. For Hotels.com blogger Hockin, that was the aquarium car on her son's Thomas the Train, which contained a toy octopus and about two teaspoons of water. Play-Doh is another no-no, even if it's sealed. If your child wants to take those toys (or winds up talking you into buying him a snow globe while you're away), pack them in a suitcase and check them for the flight.