When you are looking for the answer to a question, and in posting the question you discover how to find the answer only seconds later after posting. Sometimes this is because you find better search terms for the question, or because the answer is in the question itself.
In gaming circles, this phenomenon is known as 'power of the post' because sometimes to answer a question you simply need to formulate the problem clearly instead of attacking it with brute force.
I was pixel-hunting for hours and still can't get out of the damn room...
(5 mins later)
nm, got it... duh Power of the Post