I'd add two more bits:
Only water in closed top containers anywhere in the fabric/sewing areas. It would be a pity if someone's cola or coffee spilled on another's fabric.
Also NO MOVING the tables! Some women in one of my groups just moved the table my machine was at ... by pushing on the table. Guess what? My machine slid right off as the legs folded up. I wasn't a happy camper and they didn't even apologize.
ali