I bought these little test tubes with screw-on tops. Filled them with rice, threw the seed packs in, topped with a little more rice, screwed the tops on, put the tubes in ziplock bags with a little loose rice in each ziplock bag and put them in the fridge. It’s worked great for me so far. I got 9/11 Gojis to sprout this current grow and three of six Tangerine Kushes (along with all seven Time Bandits, but those were brand-new seeds), both the Goji and the Tangerine had been stored for about five years. Sadly, only one of my last six Prayer Tower f4’s sprouted and it fizzled out quickly, also been stored for about five years. But I have a feeling those seeds were kind of old when I got them. And every grow I’ve done for the past five years has been with seed stock that was purchased at around the same time (five years ago) and stored the same way. Usually get 90%+ germination rates.
I should mention, I put my seeds directly in the dirt. I don’t bother with soaking or paper towels or any of that. I’d probably get even better germination rates if I did the whole “soak/paper towel” thing. I just like starting them directly in soil.