All I've got is a rower, a slant board, and a weighted pulley setup I only use for some old rotor cuff issues. Our daytime winter high temperature is almost always a bit above freezing, so riding is doable. The motivation is not always there, but I know it's doable.
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Some people are like a Slinky ... not really good for anything, but you still can't help but smile when you shove them down the stairs.