When furniture polish or wax builds up on wood furniture or leather tabletops, get rid of it with diluted white vinegar. To get built-up polish off a piece of wood furniture, dip a cloth in equal parts vinegar and water and squeeze it out well. Then, moving with the grain, clean away the polish. Wipe dry with a soft towel or cloth. Most leather tabletops will come clean simply by wiping them down with a soft cloth dipped in 1/4 cup vinegar and 1/2 cup water. Use a clean towel to dry off any remaining liquid.