Not sure if this is the right or proper Way to store seeds, but I have mine in a Tupperware container with a few of those dry packets (sometimes get in pill bottles electronics etc..) have the lid closed air tight and store in bottom of veg crisper as that is suppose to keep a low humidity... Been working for me...those packets can be found in a lot of things.. Start looking around the house, ask your local pharmacist to save them for you etc.... I'm thinking that's got to be better than using rice!?!
Yoda