My pal on the allotments stores saved seeds in the foil type bags you get cup-a soup in, which is the sort of material the little inner bags in seed packs are made from.
I've just done a fruitless search for suitable bags. Lots of polythene and paper but not foil!
I suppose I shall have to start looking in bins now, if I do it in my gardening gear they'll just think I'm a tramp!
Suggestions please?