I'm always planning for the next hunt. The thing I do most is read through the forums just about day. I'm also shopping around for the best deals on new gear, hitting the range as often as possible to try new loads, and putting together some maps to use when I start scouting.
I'm pretty psyched about spring gobbler season, so I've been devoting a lot of energy to that. But what I really dream about is that next big, mature buck. It stinks having to wait another eleven months.