Hi, I was just at the Fons and Porter site reading Tips and saw this. Well it isn't 5 inch squares, but a good tip anyway I think. I will try it. Here it is.
Wash fat quarters and partially dry in the dryer. Place damp fat quarter on a flat surface such as a table or countertop and smooth fabric with your hands until flat. Add more fat quarters atop first one, smoothing each. Press immediately or take a break, leaving the damp fabrics in a stack. Pressing goes faster since each piece was previously “hand-pressed.”