I love to rollerblade.... but if you want something cardio... how bout jumping rope?? It's an AMAZING cardio workout in a short period of time.. AND if you get good, you can through in all sorts of tricks to make it NOT boring. DD was in the "Armidillo Ropers" in elementary school...and they did all sorts of tricks.

I've also been "planning" to get something I can put my bicycle on, but haven't done that yet.

Mike