Rick, why on earth would you consider "storing" your plane? Flying is a year round hobby in these parts!!!
In answer to your question, mine stay in the garage year round. No plane goes more than about 2 months without flying. If it was going to be a while before I used it again I would unplug the battery and lube the engine with after run oil. Most of my planes hang from the ceiling, so mice aren't an issue, but I do put glue traps and bait all over the shop to keep them out of the stuff that's not hanging. The glue traps are also quite effective on the lizards that like to visit during the summer. They're cute, but the droppings they leave make them unwelcome visitors.