Thank You to the Street Cleaner

Commuting on a bicycle has given me a whole new appreciation for the people who clean the streets. Having a clean road to ride on makes the commute so much safer and easier. So far, I have seen the street cleaner on my route 4 times. Each time, I sit up, wave my entire arm, and yell "Thank you." I'm sure the guy driving the machine can't hear me, but I wonder if he understands what I'm trying to tell him. I sure hope so.