I do all my building in my garage so I'm fortunate to have it sealed and heated. I put a tank of fuel through my engines and some after-run oil. I can leave the batteries in place so I just charge them one a month while I'm working.

Having said that we had the remnants of a hurricane pass over us 2 weeks ago and I ended up with 2" of water running through it. the models are all on shelving so were ok but some tools/wood etc that were in boxes on the floor ended up doing the backstroke