But don’t worry, here’s another problem for which WD-40 is the solution. If you apply it properly, you can open and close your backpack as if it were brand new. Now you can carry WD-40 in your backpack to be ready for situations like this.
Did you know that you can avoid cutting your hand by spraying some WD-40 on the handle and then cleaning it with a dry cloth? This makes the wood surface smoother and prevents you from injuring yourself when holding your tool.