I was thinking that for the garage, since I was going to need a 'hot plate', I could just put my big soup pot on it on 'low' with some soapy water. I wipe everything down with microfiber towels and then rinse them in hot soap water. I generally don't wear gloves when soaping as I'm between sizes and make a bigger mess with them on, than have safety issues with them off. I'm always wiping/washing my hands so batter doesn't have a chance to cause problems.
I'm 60...my youngest daughter bought me a gel mat for my birthday last year and I like it, but I need one for the whole kitchen floor. LOL I caught my husband, since he does most of the cooking as he is retired, sneaking the mat over in front of the stove. It's really less about my feet and more about my back. Someone mentioned a back brace and I've checking them out on Amazon, but hard to find a size called 'old and overweight'.