I voted go to the gym. But, I will do a combo like some gals have posted.

I take spinning classes at my gym. Actually, I'm certified to teach if I ever get my act together and make it work, vs just for me. I also lift weights regularly at the gym. Sometimes I'll kickboard in a lane in the pool. Sometimes I'll whack a raquetball around.

I do own a trainer. That's hard for me to dedicate doing at home. Too many interuptions despite the best planning.

I bought xc skiis last year. Planning to bust those out. I just got my snow shoe order recently. Hoping that will work out. Thinking my new puppy will enjoy some winter hiking with me. Also, we got indoor rink skates for the kids and I. Not hard cardio, but it does take some balance to skate.

And, from my prior post about buying gear... I do finally own some winter pieces now. So, I can get out on the road and trail too hopefully when there is no snow. Snow is very hit or miss in the midwest.

One of our lbs started CompuTrainer classes. If I want to mix it up more, might try that.

But, spinning is my "main stay".