BB, I'd suggest putting your request on a label and affixing it to the baggie. Also be sure to put your board name on each F8 as well for easy id and to help prevent fabric mix-ups, something that's easy to do when you've got 16 fabrics. If your request won't fit on a label, you can put it inside. It's whatever works for you but separate papers can easily be misplaced so I'll go with a note on each F8. As for mailing, I suggest simply buying the correct postage IN STAMPS for a return envelope, affixing it to a return Priority envelope you put inside the envelope you'll mail to me before you seal it. That way you won't have to deal with cash or stamps and I'll have a return envelope already stamped for the F8s I'll be sending to you. (My PO said stamps are preferable. A printed label with postage will have the wrong mailing date. It may cause a problem.) Of course, I'll have a supply of Priority envelopes ready for those who opt for cash or stamps. We'll use the same procedure in sending completed blocks. Hope this helps!
I'll be sending out an email mid-week this week to let everyone know how the groups stand and to clarify mailing of F8s.