1. I know some: Stand close, Position feet. Bend at knees. Test weight. Get a firm grip. Lift with legs. (Close enough, ask a preload sup they know this stuff by heart)
2. Dont come to work (Just kidding, but I don't remember there being 5) Wear sturdy shoes, keep eyes ahead of work, and drawing a blank on whatever else.
3. Only the person that secured it.