Ceramic windo tint and aplication questions.

Just in case anyone finds themselves in the same fix I found that Goo Gone helps a lot. So far three complete careful cleanings with a change of cloth for each side of piece of glass has gotten most of the way there. The towel that they rest on between steps has to be changed with each cleaning and everything that touches them needs to be cleaned including my hands. After three cleans with Goo Gone I went back to scraping with a blade and baby shampoo water ( which you do anyway to clean the glass enough for the film) and then cleaning with vinegar water. I found some pore hiding near the edges. That little but contaminated everything so it was back to the Goo gone. If I keep at it in this fashion I think I will eventually get it all off. Because of the window film application this kind of clean is needed. Anybody got anything faster or better? MEK did not seem to have any effect either.