There is a product called Dri-z-air which we use here in Washington since our TM is stored a lot longer than "1 or 2 months". You can find it at Camping World
http://www.campingworld.com/browse/s...filiateID=1126 or many other places.I'm not sure if Wally World has it or not. It is available from the supplier for order on the internet.
http://www.drytheair.com/xcart/store/catalog/ Works great!