How do i clean an iron sole plate with vinegar?
Run it (the vinegar) through the steam function of the iron and all of the impurities will come pouring out of the iron. Do this over a sink and have a sponge at the ready. Use the hot vinegar coming out of the iron to continuously wipe the sole plate. The heat loosens deposits and the vinegar removes them. Double duty, you eliminate what causes the sole plate not to slide and the source of the ick on the sole plate in one fell swoop.