Here in southern New England, I've had good luck keeping my seeds in a closed plastic bin (yes, too many for a shoebox)in my studio (room temperature). Seeds I have from 2005 are germinating just fine.
Where I am moving to the Greenville-Spartanburg area later this year, I am wondering if I am going to have to change that practice? With the hot summers, do you all store your seeds in the fridge? If so, do you have any recommendations on moisture-tight containers?
If that's the case, LOL, DH is going to have to buy me a separate refrigerator.