You guys prob have a much larger stash than I do and i was thinking the same thing with moisture, but do you think there's any issue in keeping seeds in the small vials you get them in with cotton stuffed in before closing( Like how Mephisto packs their seeds) , ill also usually keep them in the mylar bags there shipping in for ID then into another large Ziplock with Dessicant packs. This is kept together with another ziplock of my veg/herb seeds and both in an even larger ziplock bag in the crisper draw of my mini fridge.
Guess my question is, in the how ever many years you have been doing this has the warm environment caused you to loose any viability in your seeds that you can tell? I know im overkill with my method my rooms can get very hot/humid in the summer and figured the fridge is the most consistent temp fluctuation.