Although, people like knitting. A different approach would be to harness knitting energy to power other things. For example, as I’m knitting, I could also be charging my cell phone or laptop.
I don’t know why these things don’t exist everywhere all the time. I’ve been trying to convince my BF (a power engineer) to rig up a laptop charger that would be powered by an under-the-desk pedaler like this one:
Not only would you get in some extra exercise while stuck at your desk, but you’d be reducing your energy consumption. Who’s with me?