Whats the best way to preserve it without using a fridge/freezer? Would wrapping it in foil then wrapping plastic wrap around the foil work?
Seriously though just go to any place that has a 1 hour photo lab and ask if you could get 1 or 2 black film canisters. They throw them out or recycle them back to the lab. The little plastic ones for 35mm film, ya know what we mean?