You’ve already heard of the Five-Second Rule. What you may not have known is that there’s a related corollary:
When transferring laundry from the washer to the dryer, if you drop a clean but damp article of clothing to the floor, it will not pick up dirt from the floor if you pick it up within five seconds. If you do, you can just throw it in the dryer.
Been there, done rather a lot of that.