Freezing rain overnight, so a few icy spots.
I went down twice (doubling my total of spills for the winter), and had one spectacular save where I managed to get my foot down after doing a 180 on the ice. The first time was trying to turn left from a stop sign on a deserted residential street, the second was a wipe-out at cruising speed (probably 25 km/hr) on a local MUP. I slid a LONG way when I hit the deck on that one.
Note that this was with my Schwalbe Snow Stud tires on the bike. I believe the tire pressure may have been too high for the studs to actually bite into the road--the studs are pretty far from the center of the tire.