I use it every time I am going somewhere new. Where is there parking? Am I turning left or right to get there? Is there a protected left turn? How busy does the street look... is there street parking, or a parking lot?

Maybe this isn't as important outside big cities, but I like to have a plan of what I am going to do before I get somewhere. Otherwise, I might end up on the wrong side of the street without the ability to turn left, or I will be stuck in the wrong lane without a chance to crossover traffic by the time I see the turn in spot. In the city I am in, this means circling around and probably adding 15-20 minutes to the arrival time.