If your beach trip involves a hotel or a house rental, book it right on the beach. Do not -- we repeat do not -- opt the cheaper place down the road. No matter how well you plan, you'll be walking back to your room several times for something you forgot to bring. (Or for that toy your kid has to have, right now!) It'll save you several thousand bouts of under-breath cursing. Plus, if you're close, it's easier to trade off who goes home to put the baby down for a nap and who stays with the other sand-loving, wildly-running around kids.