I’ve gone to the gym 3 times so far and as much as I hate to admit it, I like running on a treadmill. It lets me keep a constant pace, I don’t get cold and my eyes don’t dry out. It also removes all the excuses I used to have. The gym is right across the street from work, I can’t say that it’s too cold, or that I don’t want to run in the dark, etc.
It also makes it easy to run a defined time, I’ve been running 30 minutes and just seeing how far I go in that time. I’m not running very far yet but it’s better than the last time I started running.