I went for a run yesterday in the cold, and felt my thigh muscles tighten up, and had some knee pain afterwards. Four inches of snow, and still falling, here in Cambridge today, so i think I will be giving it a miss.
I manage a busy software department and have two kids so kinda fit into that category. I fit in running at lunchtimes, when I can and early mornings at the weekends before everyone else is awake.