If you drive to the parks and you are an AAA member, ask AAA about their special diamond lot parking pass. We got ours when we bought our park hopper tix. With this pass, you can go to a portion of the parking lot that is very close to the entrance, so you don't need to take the parking tram (the lot is right by the kennel at Epcot and MK). It's subject to lot availability, but we had no problems whatsoever using it from 11/3-11/6--plenty of room, and at all different times of the day. It's definitely worth it for Epcot. MK is a bit of a tossup, because you need to actually still walk pretty far. Depends on whether you have very young kids who will object to the walking.