Thanks for comments, Deb. I like the idea of encouraging people to meet up and exchange books or chapbooks — or trade by mail. For people in a given area — say, Portland, OR — it might make sense to have a swap-meet half-way though the month.
I hardly did any advance planning, other than buying a bunch of new-to-me books at the local used bookstore, ordering the bundle of chaps from Seven Kitchens, and getting two or three must-haves from Amazon. Then I made a big pile of candidates on the chair so I could pick what I wanted each morning. That made it more of an adventure for me than having some schedule all worked out in advance.