I need more original ideas for exercise

I need more original ideas for exercise! I've done jogging, biking, and a bit of roller-bladding. Trying to lose fat+gain muscle, cause I'm a bit weak. Already do Judo three times a week and horseback riding once a week.

Rollerblading is by far better then jogging. I'd stick to Rollerblading, it burns 900-1000 calories an hour, and that's a lot.