Last game of 2012 for me yesterday, was storing my gear today and here are a few tips for long term storage:
Aeg:
Disconnect battery
Clean it up
Hop Up at the lowest position
Couple of shot in semi to decompress the spring
Gbb:
Fill up and silicone lube the mags
Hop up at the lowest
Clean it up and silicone lube
Your gear will be in good shape for 2013 season