We do what Brier Rose does- the day of the party, we sleep in, toodle around the resort pool, have a nice leisurely lunch, etc. We always try to get to the MK right around 4- 4:30, then have an early dinner before the party starts. Then, it's party time!! We usually stay til midnight.
The day after the party, it varies. In 2005, DD and I got up early and DD did the Pirate Cruise (I sat around in the GF lobby and just vegged out with a magazine). DH slept in and lounged around the pool. Then we met up around noon at Blizzard Beach. This fall, we are going to sleep in just a bit and plan on arriving at Epcot at 10am or so. We will do a few things at Epcot and then just a few things at MGM with a break inbetween, a nice TS dinner, and Fantasmic in the pm. Overall, a slower day than normal.