Explore Stack Trace in Resharper
I've been using Resharper for a couple of weeks now and, whilst it takes some getting used to, I'm just about starting to enjoy some significant productivity increases. I have to find some time to go through the settings properly and enable/disable the bits I like/don't like but on the whole the experience is positive. Especially when I found this little beauty.
You know how it is. You're debugging your code and some exception get thrown deep in the heart of some code you don't own and your left to unpick the exception. You click 'view details' and get this dialog that contains a mucky stack trace:

Nightmare. We've all been there. I usually end up cutting and pasting the stack trace into Notepad so I can read it. But now, all I have to do is copy the stack trace to the clipboard and choose the "Explore Stack Trace" option from the Resharper menu:

And bingo! Look at that:

I can even click on the links to jump to appropriate piece of code. Nice.