I've got a sizable hill in the middle of my route to go up and then back down, then a traffic circle to maneuver around. I ride on PCH in Long Beach, CA so the traffic is pretty sketchy. Also, there are a couple areas I ride through that have parks adjacent to the road...skunk road kill unfortunately is not a rarity. I almost ran over one today while I was trying to enjoy the ride. It was right in the middle of the bike lane, now I get to look forward to that for the next few weeks... Jeeze, now that I think about it, my commute is actually a little depressing, lol.