Running...beats a gym membership

I used to belong to a gym when I lived on the East Coast. Made sense cause there's a few months of the year when you just do NOT want to be outside. But here in sunny cali, I don't see the need. I started running to keep in shape so I can play Ultimate Frisbee, but now I'm kinda into running on its own. Problem is, when I'm not running I wish I was, and when I'm pounding the pavement, nothing seems more appealing than walking.

I try, and I try, and I try, and I try.
I can't get no...duh nuh nuh.
I can't get no!

(You can't beat the free workout, though.)