Thanks powersensor for your drawings. I'll archive it so that members can refer to it in the future.
Here's what I learnt from Adam Strathairn (aka strath76) who runs the Victorian Carnivorous Plant Society Seed Bank. I am using this way to pack the seeds for the PetPitcher Seed Bank. I find it is not so thick although the packing is smaller with powersensor's way. On point No.5 and No.6, you can fold the paper further in so that one side can be pushed into the other side locking the pack together. For PetPitcher Seed Bank I place a double sided tape to seal the pack and stick it on the seed pack envelope. That way no chance of it opening.
Adam also uses the way done by powersensor in the illustration above to pack seeds for the Victorian CP Society Seed Bank.
