The worst part of my commute is when i have to get into the left lane to turn left. Traffic is moving 35-40 mph and they want to get around me, and there I am trying to get into the left lane!

The best part of my commute is the hill home. There are NO right turns at all, for a mile. So I can merrily pedal uphill at my own speed pretty much not too scared that someone is going to try to take me out because the lane is very wide.
another best part of my commute is when I go through the old factory building where they used to make the old b-52 bomber airplanes. It's totally vacant, but there are still roads that go THROUGH the silent building. So as I silently pedal through, I imagine all the hustle and bustle that Rosie the Riveter and all those other gals were making during WWII.