I had stopped doing film photography for quite a long time, but last year I came back. At the same time, I decided to do an expired film project and started buying film stock. For this purpose, I bought a small freezer set at -21 degrees Celsius. I must have gone overboard, because I filled the freezer completely, and also took up a large part of the home refrigerator.
I keep most of my film stocks below -19/-21 degrees, others at "normal" temperature, 4-5 degrees. All films are in ziplock envelopes, with much of it actually cinema film stock - Kodak Vision, Fuji Eterna, ORWO, Agfa. Another part is bulk boxes of 50, 30, 17, 10 and 5 meters. I guess they additionally keep moisture out. Much of the 135 and 120 film is at 4-5 degrees, ready to be adapted relatively quickly to room temperature if needed.