You guys will be bored with this but I have been fretting the big job of cleaning my loose socket and wrench inventory up for return. The oil they wash them in after chrome plating reacts with the foam organizers in my socket drawers and wrench organizers. It turns to black goo and impossible to get off. I tried brake clean, solvent, thinner, wd 40 and the like and nothing even softened the goo. A customer today grabbed a nasty socket and gave it a ultrasonic bath for 10 min. in a 10% Simple Green solution and the thing looked better than new. Now I am off to the net to order ultrasonic cleaner. I might as well get one big enough for carbs. I might have time after I retire to do some of those. LOL