Well, Disney sells out at peek times like when occupancy is full, or when close to full when it's Halloween or Christmas and lots of folks want to see camper decorations. Other than that, it happens infrequently in my non-scientific opinion. But they are always after the next dollar they could have made. You are welcome to come over to the Fort for the day. My advice would be to call ahead (or even before you arrive at WDW if it's during a busy time) and make a reservation with Disney for a cart. Off-site vendors offer a lower flat daily rate with no extra drop-off/pick-up fee (that's good) but to do so they require a minimum rental period (that's bad) of usually three days or more. So in your case, it would make sense to go with a Disney cart. A shorter rental would likely get hit with the fees and it probably wouldn't make sense. Non-Fort guests are welcome to come do any paying activity such as boats, canoes, carriage rides, etc. Playgrounds are fine too. Usually day visitors can't pool hop to the Fort pool but I think I heard DVC folks can pool-hop to the resort hotels. Don't know the details about how that's supposed to work. And for the next few months, we'll have Wilderness Lodge folks at our pool since construction work/upgrades will take their pool out of action (I think they can use the Contemporary pool also). Maybe come over in the afternoon, stay for dinner at Trails End, catch the campfire singalong with Chip & Dale at 8pm (7pm after clocks move back in November) and the nightly movie is at the singalong place about 840/740pm. You can see the Magic Kingdom fireworks from the Fort beach (music piped in) whenever they are scheduled. You could easily spend an afternoon/evening at the Fort visiting. Bama Ed