We actually had a request (and obliged) from the stores department that they wanted a flashing "led" in their receiving application whenever there is a pick-slip ready, as the computer is mostly unattended and they want to know if there is something that requires their attention when they walk by, and there is another application that has another blinking led (as requested by the users) but I can't remember what it was.
"The five senses obstruct or deform the apprehension of reality."
Jorge L. Borges?
"Premature optimization is the root of all evil in programming."
Donald Knuth, repeating C. A. R. Hoare
"To die for a religion is easier than to live it absolutely"
Jorge L. Borges