I have this system for enforced self-discipline:
"Do not sign up for any exchange until you have completed your outstanding obligations on earlier ones"
1) The Kodachrome slide exchange slides have been chosen, and I've prepared my packaging, but the slides need to be scanned first, then a note has to be written and the slides and notes need to be packaged and mailed;
2) The Group Print Exchange 11 prints are done, the accompanying note has been prepared, everything has now been packaged and they just need to be mailed;
3) When 1) and 2) are complete, sign up for the next Postcard Exchange!
P.S. - note that I finally figured how to get an umlaut (sp) into my APUG posts!