Looking for something to do other than study? Don't have a lot of cash? Why not visit a local museum? MuseumsUSA offers a comprehensive listing of U.S. museums, searchable alphabetically, by state or by type. You can even browse special events going on in the days or weeks ahead of when you plan to visit, making it easy to turn the experience into a low-key date or social outing with friends. And though the idea may be to get you out of the classroom, dorm room or library, you'll probably still learn a thing or two.