One of the few signs of spring this year.

I noticed one of the annual occurrences that happen around the beginning and ends of my bike commute season today - the return of the port-a-johns to the parks! The grass is still getting green here and it may have been below freezing this morning but it made me glad to see them out again. I'm sure others here look for similar things before the masses return with the warmer weather, what are yours?