I find knowing what the stack is at the point where things go wrong incredibly useful. Having an IDE that allows me to work my way back up the stack and see wh

I find knowing what the stack is at the point where things go wrong incredibly useful. Having an IDE that allows me to work my way back up the stack and see what direction my code was called from that meant that I ended up with an invalid state is terribly handy. I also sometimes find it useful when calling code I don't have decent documentation for. I can examine the various properties of the object I'm trying to work with, and see which ones contain useful information.