First bicycle commute to the new office. I had a route already planned out and ridden a few times, but I noticed on Google Maps that there was a dirt trail that would shave a couple K's off the route and would probably be a bit safer because it's off the main roads. So this morning I tried that trail for the first, and probably last time. Turns out it's a singletrack mountain bike trail, not at all suitable for a road bike with slicks, which is pretty much all I own. Most of the trail isn't even dirt - it's just a tire-width's worth of flattened grass, and in the morning dew, is very slippery, and there's a lot of up and down. I spun out on the first climb, and just walked my bike up the hills after that. The near 0 clearance between the front tire and fork quickly got gummed up.
Maybe I need to put some knobbies back on my cyclocross bike and try again sometime. In the meantime, I'll stick to the roads.