 Proper use of fireworks, it's a matter of health and safety. So along come the reminders this time of year, like making sure any aerial device is aimed away from people. Also, never hold a device that you light in your hands. The State Fire Marshal's Office says there were 100 fires across the state last year due to fireworks, so you want to have that bucket of water ready as well. More at allyouneedtoknow.com, the letter U, the number 2.