Running in the dark

So I have started running some nights after work, usually in the dark. It's really not that bad (you just have to be careful and watch out for sudden drops or rises in the sidewalk). Running outside is much more enjoyable than running on a treadmill, although it is more difficult to keep a steady pace, especially when you can't see where you are going. It's a great escape, well, just going to the gym is to an extent, but running outside, in the quiet, away from everything is great. One of the main reasons I love cycling, actually. Wouldn't mind running with someone at night, either, but there aren't a lot of people into running after dark. At least I have my IPod to keep me company.