The one thing I've never been able to figure out, until now, on TextWrangler is how to find the corresponding brace or quote or bracket or parenthesis that acts as a balance. For example if you have code like this:

[some func]

How do you find the starting [ that matches your closing ]. In this example it's pretty darn easy. But when you are doing with braces which can span many lines of code, this can be hard to figure out.

So the answer: double click on the brace or quote or bracket or parenthesis. When you do this, it will highlight everything that balances the element you just clicked on.