It seems all I do nowadays is work, be grumpy or read. Usually if I’m too grumpy to do anything I just sleep early, but I can’t physically sleep enough for my mood these days.
Your methods will probably not work for me, but I think this might get my head working on ideas.
Besides that, I bet others will find some use for your ideas too.
I spend time with friends or try to extract dopamine from computer games. When the weather is nice I might shoot my slingshot or guns.