I get mine from stampin up. :) they are also self-adhesive. I think they are called "clear envelopes."
The last ones that I bought were from here.http://www.clearbags.com/clear-bags/flap-seal
I buy mine from Michaels :) They are over by the cellophane/tape/packaging stuff.
I buy mine at Michaels and Clearbags.comLeslie
You can buy the bags at Joann's and at Michaels. They may be in the jewelry dept or in another besides crapbooking. Just ask a clerk and they should be able to help you. Good Luckfirstname.lastname@example.org
I haven't ever bought any, but I have seen them at Michaels here.
After spending a few hours searching the www, I found a great place called Gifts International at https://www.giftsintl-us.com/ I found other places, but the prices here were good and the shipping was very reasonable. They also had lots of other stuff crafters would like. I was concerned that the ribbon was so cheap that the colors would be muddy, but they were beautiful. You can see what I purchased from there at http://djssundries.blogspot.com/2011/07/bargain-haul-and-giveaway.html (the giveway is closed). You can get 100 bags that are 4 15/16 X 6 9/16 for $1.12.Cheridjssundries.blogspot.com
they are called cello bags (at least here in the UK they are). I'd check out ebay!!!kathleen mc x
Thank you so much for your comments! I appreciate all feedback. Don't forget to follow me if you like what you see! PLEASE give me a link to your blog too so I can pop on over easily!!!