Morning commute to work (6.5mi) was just awesome. I am usually a bit bored with this route but this morning I managed to draft a semi hauling 3 trailers until it out-accelerated me around 30mph. That's on a MTB on flat ground. I was pretty happy with myself. Then on a small hillclimb, on a bridge that goes over some tracks, I passed 3 other bike commuters, and left them in the dust. That was fun.
Some days the commute just seems to be at its worst, but this morning was one of the best. So glad I tried commuting on bike!