walking back from lunch with my cow-orkers one day, i realized we were passing a clock store. i went inside and bought a not-too-expensive cuckoo clock and installed it on the wall of our single large conference room
it would make whirring noises every 15 minutes. a few clicking sounds before the hour, and then CUCKOO, CUCKOO as many times as necessary. the marketing and sales folks did NOT like it, but:
- meetings got shorter and there were fewer of them
- the CEO of the company loved that clock. if i forgot to wind it, he or our admin did :-)