[zurcociremer]

Jogging in place, 3-4 hours a week, 15-45 minutes per session

It doesn't have to involve jogging pants and running shoes -- you may do it barefooted and pajamas in the bedroom, before dinner.

[brown9-2]

But I'd bet jogging outside is a heck of a lot more fun than staring at a wall

[alex_c]

Depends on the weather, doesn't it?

[mcav]

I dunno. Some of my most fun runs are when it has snowed outside and you have to leap over snowdrifts.