Ha, of course this would be a use case that we have a machine for. Opening jars really is a pain sometimes, but it's so satisfying to pop them off by sheer virtue of manly strength, so buying this seems like a little bit of a surrender. :( That said, if it also had a can opening feature for ultimate jar or can powers, that would be really cool so that I don't have to figure out where I put the can opener or wondering if I ever even bought one...