Gee! What a good idea!

I do run some outdoors, even in the winter, but I find that it's pretty tough to get myself out there on a cold day. (And I draw the line at icy days—I'm running for health and fitness; running on ice is completely contraindicated.)

The dread mill seems like another option, for the days I just wouldn't get myself out for a run outdoors. One that serves double-duty, if it counts as meditation as well.