Just to give you an idea of what a Pocket Letter is, I'm including a PL that I recently did for a Halloween swap with one of my Pocket Letter pals. What's great about this idea is that it uses readily available trading card sleeves. You can get these sleeves just about anywhere and they're super inexpensive. Each pocket measures 2.5 x 3.5, which is the same size as an ATC/ACEO so it's extremely convenient! Pals go all out decorating, embellishing and adding extra goodies for their PL pals to use. It's an excellent hobby that fosters new relationships! There are even groups for kids, so your children can participate and make new mail art friends.
If you're interested in swapping Pocket Letters with me or my readers please feel free to leave a comment below!