DUH!!!!! Why didn't I think of that?! Put aluminum foil in a bowl, pour the grease in. When it hardens, roll up the foil and throw it out!
UNEXPECTED HOME USES FOR MAYONNAISE - Remove Sticky Adhesives! Want to get sticky price tags or glue type residue off containers, mirrors, glass, or bumpers? Instead of buying expensive products, use a little bit of mayonnaise! Rub the sticky spot with mayonnaise, remove with a cloth, and you will have a clean, smooth surface.