Seeds need 3 things to survive: dry, dark & consistent temperatures. I keep mine in plastic totes under my bed, that seems to be the coolest spot in the house. I tried storing them in my kitchen freezer, but I had trouble with condensation. Every time you open the freezer door, all the warm air flows in dropping the temperature inside. This causes things to start to thaw out. You don't notice with larger items, but small things like seeds take a very short time to thaw. If I were to freeze seeds again, I'd probably put them in a chest type freezer, something that isn't opened very often.
Joolie, I do the same thing. Any silica packs I get in items get tossed into one of my seed totes. It's amazing how many of those things you can accumulate in a year or two.
