I started the day going out to post stuff and get supplies, then changed the oil in the DRZ (it's a pain, as it holds oil in the frame). I was cleaning the chain on the mountain bike when I found a crack in the lower rear derailleur pulley. It took me ages to figure out which one I have (apparently there are hundreds of different "Shimano Deore XT" setups) and to order a replacement. I'm assuming that this has happened at any time in the last 15 years, so I'm not going to stress about it - I'll just replace it when I get the new one.
In the afternoon, I went to the airfield, stopping at the new flight centre to see what they have in stock. I found out they're having a pancake breakfast next Saturday, so I got them to send me a flyer so we can tell the EAA chapter membership. When I got to the hangar, it was too windy to fly, so I went with the Jacks to get a root beer float. When we got back to the airfield, the wind ad calmed down, so I went out for 45 minutes. The wind (at ground level) was coming from the South, so I headed West, aiming for the Feather River. The GPS showed a fairly decent ground speed of ~60mph, which made me suspicious - was was showing ~40mph on the way back, having not got as far as the river :o) When I got back, I made a start on cleaning the plane, as it's got pretty dusty in the hangar.