I can't believe I did not think of this until two years ago! Get revenge against junk mail by snipping off 2-3 inch corners of each envelope, label, fill with the seeds you wish to share or mail, fold over the two cut edges, then staple closed. Since I got my stapler and MANY brand new boxes of staples via dumpster diving, these packets are 100% free. These cut off corners are also great for covering freshly pollinated rose blooms...just slip over the emasculated pollinated bloom, fold a corner, then paper clip shut. I wince to think of the money I've spent over the last 18 years or so on coin envelopes for this purpose, but overlooking the obvious is one of my biggest character flaws.