I work in a workshop, and share toilets with 25+ workers. When they dispense paper towels the roll keeps spinning and some paper towel is wasted when it falls to the floor (5 or 6 squares at a time). So, we need to buy paper towels a lot to keep in stock.
I was planning to use a spring to hold a metallic piece against the paper towel to keep it from spinning out of control, but I am not sure because this isn't so original and may be a bad idea.
How can I decrease the waste of paper towels in the bathroom? (Without Electricity!)