Walking around to look for loose cables and trip hazards is not the most exciting of tasks for staff.
Mundane tasks can be turned into something more interesting with an element of fun and competition.
Get a large box of chocolates and let people win chocolates based on the number of hazards they spot, with special prizes for fixing things on the spot and the “best hazard spotted”.
This is more than a fun competition, what you are achieving is building team spirit, participation, and common sense of responsibility without having to be “managerial”.