absolutely two (Score 1)

Swithching between applications via alt/tab, once consumed so much time that my nose hairs grew to a length which caused them to become entangled in my trackball mouse. A co-worker was able to cut the mouse cable with a pair of fiskers and I escaped relatively unharmed. I was one of the lucky ones. The mouse dangling from my nose, now serves as a reminder of the dangers of one monitor work habits.