To prepare for the approaching holiday season, I suggest you do a traffic analysis.
In your point of sale software
Go to your traffic reports shown in green in the reporting
Out in the applicable dates, I would suggest running it both weekly and monthly.
Attached to the output produced; you will find a colour coded analysis showing how active the shop was divided into groups with red being the main busy period. I used some old dates.
Now these red ones are the periods you really need to consider.