Postage Stamp Bag Swap

Do all the initial stamps have to be different, or can there be more than one design (as long as there are at least 3 different kinds, for example)?

I always see these swaps but don't really understand how they work so I'm afraid to join in case I land myself with a 3 haha. can you explain stamp bags? or direct me somewhere that explains well? @lostinavalon

@MelinaBea -- All the stamps in a bag should be different. However, since you are sending two bags, you can have one in each bag of the same kind. Does that make sense? I'll edit the swap for clarification.

@vedalovelo -- A stamp bag is a small envelope, usually about 4 inches or so, that starts out with a certain number of (usually used) postage stamps inside. On the outside of the envelope, you write "return home to" and then leave your address. You also write how many stamps a person should take out to keep and how many she should put back in. Finally, you write out the numbers 1-5 (or whatever) and leave space for people to write their names next to the numbers. The person you send it to makes her swaps, signs her name on the outside of the envelope, and mails it off to someone else the next time there is a swap. I usually include about 8 stamps to begin with and write "take 3 add 5". You always have them giving more than they're taking so, by the time you get the bag back, you've got a lot more than you put in. I also offer a reward to the person who sent me back the bag---usually something from their profile. Here's a blog with a photo of stamp bags. If you click on the photo, it will enlarge and you should get a general idea of how to make one. http://paperbased.net/blog/snail-mail/postage-stamp-swap-bags/

Thanks for the answer, and yes it makes sense :-)

I will have to join on a future round. Right now most of my stamps are brand new, it hurts a bit to send them away as I've spent a lot of money buying postage!