Three solutions are proposed to determine if there is a long queue at the office photocopying room without walking there: 1. Install mirrors on the ceiling around cubicles to reflect the photocopying room so staff can check before walking over. 2. Install a video camera and stream the photocopying room feed to staff laptops for viewing from their desks. 3. Use mirrors installed on the ceiling to see if colleagues are at their desks without walking over, providing a low-cost surveillance solution.