Want to do all the kids stuff but without the kids?
Fine, go ahead, make it tough on us! Your best bet is to college exam-level study the park's schedule, figure out what families would want to do, and do the exact opposite. Obviously, easier said than done, but when Hollywood Studios' "Fantasmic!" begins, hop in line for Tower of Terror or Star Tours, where lines will be shorter. Want to watch the evening Star Wars fireworks? Do so from the tables outside Min and Bill's Dockside Diner, where the crowds are thin.
If there are two options for parades or shows, like with Magic Kingdom's "Celebrate the Magic," always catch the later showing. And view the "Wishes" fireworks show from the waterside walkway between Liberty Square and Frontierland, as the crowd is bare-bones but the view still good. Ride wait times can be significantly shorter during evening entertainment, so take advantage and get your dose of nostalgia before you swiftly become the tallest person in line.