A shopper reads your store from the footpath. Smudged glass, a grubby entry mat or dust on the display table suggests the stock might be tired too, and it only takes a few seconds for them to keep walking.
Retail is tricky to clean well because the window is short and fixed. Staff arrive just before open, deliveries land in the morning, and late-night trading shrinks the gap even further. A contractor without a plan ends up cleaning around customers or skipping the jobs that take time, like fitting rooms, stockroom floors and the glass.
Store and centre managers then carry it. Staff spend the first half hour wiping counters, and someone has to keep checking the cleaner. That's time taken away from selling.