Cleaning a plastic floor TSP or Windex?

uming the paint is latex or acrylic, Goo Gone will remove it. Then, clean the floor with 1/2 cup household ammonia in a gallon of hot water.Open a window or turn on the exhaust fan. Ammonia can be rather potent but, it is a very good & inexpensive cleaner. TSP may dull the shine on the floor.