I'll tell you my secret ( well it's not anymore). I make a cleaner for paint, tar, grease and other nasty stuff..O.k..Here is what I do..
Half a cup of dry cornmeal...Add enough thin cooking oil ( vegetable oil works for me) cover the meal with plenty of oil..make it soppy wet.. Add a squirt of Liquid Dish soap mix it well..add enough extra corn meal ( if needed) to make a paste and coat it ( what ever needs cleaning) on it, and work it in..Wipe it off with a cloth..Repeat and repeat until IT looks clean except for cooking oil..When I finally get it (everything) clean I may want to put more of the mix on it until the color on IT is light oil colored like the mix then I rinse with soapy water..Eventually fresh water.. IF you do try this,,,Eventually there will be a thin layer of clear ( or almost clear) oil on the rope your hands your wife's shoes, you mother in law's cat, or what ever you tried to clean with this stuff..,, I use warm water and soap to remove the oil and bingo,, I'm done. For me this stuff makes the best hand cleaner...Now IF this does not work for you..Remember,, I'm not telling you to do it.. I'm telling you HOW I would do it..So if you mess something up talk to Jesus about it. Like the Preacher said confess your sins,,not mine and don't fault me. Smile...Good luck