I keep my KB in a film canister in the freezer. Some people I know keep their bricks in a fridge or whatever, but by the time you get any smoke, chances are its probably been sitting out - probably in a bag at room temp - for so long that how you store it isn't going to make a big fucking difference. Fuck those websties and head-shops that sell "stash" containers; that shit is just a fucking rip-off. Hit Walmart and get a little cosmetics holder or something. I bought one for $3 that can hold a whole ounce.