Collect all items that you need for the gods on stage, foyer and stage decorations. Get a friend or two to help and do a mock up of each set up at home, so you can add or subtract stuff for your decorations. Put in a checklist of everything needed for that part of the auditorium and tape it to the tub. If something is forgotten, you will know right away. If you need more light, you may need to take a tall lamp tree with you.
Dancers get hot and their makeup can run.
Your programs should be printed soon, if not already done. Pack them in a small plastic tub and put them in the front foyer box. If you are going to mail-order any food, you should go ahead and get the order set up to deliver a week before the program. If you plan to get presents for helpers or relatives locally, it is time to get them. Get all text of speeches written, or discuss them with those who will write them.