A Teflon sheet on the lower platen of your heat press can make it a lot easier to slide garments on and off. The rubber-silicon pad on the lower platen doesn’t allow for easy sliding on and off of garments. The Teflon sheet will change that.
You’ll want a sheet bigger than your bottom platen so that it will overlap the edges. Magnets on the underside of the platen can be used to secure the sheet in place.