When a venue near Vicarage Road fills up, the cleaning challenge starts long before the last guest leaves.

If you've ever come home from a walk in Cassiobury Park and noticed a muddy paw print, a damp dog mark, or the dreaded mystery stain spreading on your carpet, you already know the problem: it looks small at first, then somehow it becomes the first thing you see every time you walk into the room.

If you commute through Watford Junction, you already know the routine can be a bit of a blur: early trains, wet shoes, coffee in hand, and a front door opened in a hurry at the end of the day.