Don't let a vacation get in the way of your workout goals. Bring along something that you can use in your hotel room, like this Jorge Cruise 12-Second Sequence Travel Gym, which runs about $25. It comes with two sets of resistance bands, handles and an anchor to jam it into a door. It also has a DVD (watch it on your laptop) that shows you how to do a whole-body workout led by Jorge Cruise. And everything fits into a little pouch.