It is so easy to call someone up on the phone, or corner a coworker by the coffee pot and start to complain about...anything. But you shouldn't. I shouldn't. Why? Because it literally accomplishes nothing. If anything, it is an excuse to justify whatever frustrations you have. It doesn't solve the problems.
Next time you feel the desire to complain about something, think about three different solutions to that problem before you start unloading your bur dens on someone else.