Spreadsheets/Tracking Neighboreenos

Actually, I have a home-grown database application that I use to track neighbors. I use it to record who has visited each day. Then I can display reports and graphs showing what neighbors have (or haven't) done. I don't track everyone every day all the time. Once every few months I track neighbors for a week or so. If they haven't visited in that week, then I usually drop them and go find some replacement neighbors.

It was a lot of fun to develop the application as well. (If I tell you the specific software I used, I might give away my identity, so I think I won't...)