Just back from a camping weekend and we stayed in a State campground and were camped right under a cottonwood tree. We noticed the sap was really bad! Sap was tracked into the camper on the vinyl floor and it's on the roof of camper and vinyl tents that slide out as well. I have tried Goo Gone to help remove some of the sap but it's still really caked into those three areas. Is there anything someone has come across that is able to remove this sap??? I also tried vinegar and acetone just on the roof of the camper in small spots and it didn't remove any sap either. Please help!!!