1:1 trades are hard to find, unless you know people that just want any old thing.
Centralized swaps can be great (Hog Wild Piggy Swap and Heather's Tomato and Pepper Swap come to mind). But that's a huge amount of work for the organizer, and sometimes even takes a lot of time for the participants to specify exactly what they have and what they want.
Heather skipped last year and I haven't heard anything about this year form her. Ella's Hog Wild swap is also skipping this year.
The only Round Robin I was in had a very big box that might have cost $25 to ship from person to person, and had mostly No ID seeds or very common ones. $25 dollars can buy a lot of seeds commercially, and then they are exactly what you want and have a fairly reliable ID.
