I do a lot of the things mentioned by others - I go 4 to 5 times a year for 4-5 day trips each. For me, it's decompression from work and bills and such, so I'm just glad to be up there where I can leave responsibilities behind and relax. I do a mix of trip types - some solo, some with friends, some with large groups. If I'm there with a group, I follow the group and let them do what they want. With a friend, it will depend on them - if they don't go often and have things they really want to do or see, we do those - some friends want to try Disney my way, so I'll do the un-planning and show them a relaxed, late-start, no-must-do-rides, enjoy-the-food-and-bars trip.
When solo, I spend some time enjoying photography, I hit the parks late after lounging around my villa in the morning, I only do stand-by rides (no lightning/etc) based on the line not being overly long, I enjoy the scenery, the displays, the shows and music, etc. I always resort hop every trip - just to wander the grounds of other resorts, often using them as a way to get to my intended park for the day (rather than bus directly to the park, I head to another resort first that's connected to that park, wander, then either walk in or boat over to the park. I like nighttime, so stay for dinners in the parks, a later evening bar visit, fireworks shows, then usually work my way back to a connected resort before heading back to my own resort. I like to do lots of walking - so I wander the long paths to parks when available, like Boardwalk to DHS. I love boats, so ride them whenever available - sometimes just to take the boat ride.
Gone are the days when I head to Disney to slam every ride into the trip, racing around the parks all day and coming home from the trip needing a vacation because I'm so tired and worn out. I come back from Disney trips relaxed and refreshed, so I can head back to the normal stresses of maintenance and bills, family, and work for a quarter before taking another Disney pause.
