I don't set any goals for myself because I like to ride, so I do it as often as possible. I purposely don't set goals for commuting because I don't like to ride in foul or unsafe weather and don't want to pressure myself into riding when it's not advisable. My round-trip commute is 30+ miles and lasts close to 2.5 hours including all of the time spent at red lights, so that has a big bearing on riding in cruddy weather. If my commute only took 10-15 minutes, I would be more open to riding on rainy days, but there's no way I want to ride 2.5 hours in the rain. I also ride for the pleasure and enjoyment it gives me, but riding in nasty weather doesn't fulfill that. However, I don't mind riding in the cold, it's just the rain/fog/sleet/snow/ice that get to me.