Was wondering what your commutes looks like on a chart. I don't care about speed, I'm curious to see the "frequency", is it flat or does it spike?
Here you see mine from todays ride home (from Endomondo):
The downs are caused by me stopping at a red light or other obstacles. Sadly the spikes are averaged out due the nature of GPS recording (rolling average?), which always has annoyed me.
What does your commute looks like?