Re: Exercise bikes
No, I don't have a bike, though I have in the past. I don't like cycling very much - I'd rather walk for general fitness.
I do have a Wii, and have just returned to it, after a long break (Achilles problem, brought on, I think, by the 'Step' programme on the Wii - ironic eh? - followed by holidays and more recently sciatica) I was pleased when my physio said I could do some gentle stuff again.
I love the Yoga workouts, which fel like Pilates to me, and the balance exercises. There's no need to go crazy and knock yourself out.
My Wii fit age has risen from 29(!) at best to 50 today. I've got some catching up to do.