I know that this one is still going, but I have a suggeston for the next. If I am correct in assumning that in this swap if person A is giving to person B then person B is giving to person A (correct?) then we all individually know who is giving to us.

I'd love to see this instead:
If person A is giving to person B, and person B is giving to person C then person C would be giving to person A. But not just is sets of 3, but all mixed up. Now If person A writes on a post "I have not sent my package yet" (for example) NO ONE would know where it is going.

What do you think?