I imagine presenters work more days than we see them, planning meetings, etc
Well if they do some of them must bunk off cos all but a few are very poorly prepared for their shows regarding colours, sizes, prices and stock.
Say what you like about Julia and Charlie they never come on ill prepared. Even Flinty is better than most.
I vaguely remember Chloe saying that she often gets called in when other people are off sick because she lives locally.