Holy crap...acetone? Ammonia? Why don't you just go and set them on fire...that oughta get rid of the polish too. What type of polish have you been using? If it's flaking etc. you probably have been using a liquid polish applicator, either that or the shoes have not been worn in a realllllly long time. The only other reason I could see is that you polished them new before the leather was broken in. I spit polish my parade boots (for the military) and have to strip them down and build them back once or twice a year. Polish is just wax (or it should be)... warm water and a gentle brush will get most of the wax off. Dry thoroughly, put on a leather conditioner and let stand a day or two. Then use regular polish (Kiwi etc)...in a tin...no liquid either. Either brush it on in layers, or if you're more adventurous, brush - then use a polish rag, cold water, and get busy. I have seen every trick in the book for shoe polishing in order to cut corners - none of them work (at least not in the long term). The long and the short of it is, it will involve work...but for a nice pair of shoes it would be worth it.