For packaging your seeds, you can use any number of things.
- Tiny zippered bead bags from craft shops.
- Coin envelopes from office supply stores
- Templates for packets printed from online sites
- Anything else your heart desires! Recycling junk mail envelopes is a great way to make seed packets.
Whichever you choose, be sure to label each seed packet properly with the common and botanical names. No one likes getting "mystery" seeds.
To avoid crushed seeds from post office machinery, you will need padded envelopes to mail your seeds. There is an additional charge for thicker envelopes , so it's best to take your seed exchange packages to the post office counter to be weighed and the proper postage paid. There is no extra charge for hand cancelling, so if you have especially large or fragile seeds, you should ask for this.
It's not necessary to send seeds in expensive overnight or priority packages.
You will find that seed exchange members use padded envelopes again and again, until they are literally falling apart, and have to be held together for their last trip with clear packing tape. Oh yes, clear packing tape is another thing you will need, if only to make sure your address labels are securely attached.
It's always best to put a short note inside the envelope telling the person who you are, and what seeds you are expecting in return. If you have a great many seed exchanges, sometimes it is hard to keep track of all of them.