As I enter the winter doldrums around here, I already notice a slight weight gain.
I am a complete failure at doing spinning in my basement on my trainer. Just does not work for me. The last few days I and my wife have been doing aerobics at a local fitness center.
I find that if I switch between the Lifecycle (which has a built-in HRM and a choice for "random" with a changeable level of difficulty which really feels like biking), the elliptical and the stair stepper, I can manage to do 15 minutes each for a good 45 minutes workout without being bored to tears.
It is bright, lots of other folks doing aerobic kinds of things, lively music.
So, this is going to be my strategy for the winter, when it is too cold and dark to bike.
Wish me luck.
I hate winter.