Here is an easy trick for keeping your towels neatly folded. Place the towel flat on the bed. Center a standard-size cutting board in the center of the towel. Fold one end of the towel over to the edge of the cutting board; then fold the other side of the towel. You might have to adjust the cutting board so it's perfectly centered. Remove the cutting board, then fold the towel in half. For hand towels, use a smaller cutting board.
Perfect Towel Folding
Organizing Good Things 2004