In general film in my house doesn't age much as I'll buy only 10-12 rolls at a time, so I don't refrigerate my film. However, if I make a big purchase prior to a trip and have a lot left over, I'll put a brick or two in the fridge to keep it fresh. Generally this is over the winter when I don't shoot much, but even then it is probably not necessary as my basement darkroom temp is probably in the 50's for much of that time (except when I am actively using the space.)