The season is a plan, not a fortnight
Most of the outcome is determined before the peak days begin. By the time the shop is busy, the decisions that mattered have already been made: who was invited, how early, what they were told, and whether the floor staff know who is walking through the door.
That is why the highest return activity in the whole season is list work done weeks earlier. It is unglamorous compared with display, decoration and advertising, and it consistently outperforms them for a store with an existing customer base.