Bike!

Sometimes I run too, but mostly bike. And on rare occasions I'll kayak or swim... or do both. (I have running and biking gear, but no kayaking gear, so I'd have to rent stuff in order to kayak.)

I'm a pretty active person, so I always find some kind of activity to do on the weekend, even though I do it all by my lonesome self.

Then I play on my computer and watch TV, or I do work if I skipped out early on Friday (like I did this week).