 Save big on back-to-school with Staples Hot Deals. Right now, 24-pack Crayola crayons and comp books are only 50 cents each at Staples. Spends 824 in-store only, limit 30. Hey, guys. This is JP and my son, Nick. What's up, everybody? From North American Exterior Cleaning. Here to break down as briefly as I can the differences between a power wash and a soft wash.