FYI In the craft section of Walmart they sell 100 of the small bags with zippers for $1.00

On occasion, if I'm out of plastic baggies, I use tea bag envelopes, but always tape the sides before mailing.

unless you tape all edges they come apart and the seeds spill everywhere.

Craft stores sell the plastic bags also, like Michaels, Jo-Ann's and Hobby Lobby

Recently i have received several trades of precious adenium seeds shipped in regular letter envelopes with a scrap of bubble wrap to protect them. They were all flattened and killed by the p.o. machine. Since we are on the subject of inadequate shipping containers I want to inform the rash of people who think this is a good way to ship that even if the seeds appear to be intact they can be cracked and useless. Please never do this! I for one intend to post negative reviews when short changed in this manner . I always use bubble envys and expect the same from those I make a deal with.