RE: storing my planes outside
Just to emphasize one point that Don made: MICE LOVE BALSA
I once stored a large box of Midwest Balsa in an outdoor shed for seven months. Most of it was wrapped in shrink-wrap, but I used a cardboard box. When I went to retrieve my balsa, I found that the mice didn't just chew one or two pieces to make a nest, they chewed in multiple locations. Just for the spite of it I guess.
If I was you, I would use plastic tubs with tight-fitting lids.