Chris Coyier of css-tricks.com and codepen.io fame has an excellent article about using Grunt.

Grunt for People Who Think Things Like Grunt are Weird and Hard  via 24 Ways.

I had heard about Grunt for a while, but I didn’t feel like yet another tool would make my workflows that much better.   After testing it out and seeing the potential behind Grunt, I now think of it as an essential part of a modern web developer’s workflow.  

Go check out Grunt – it’s like CodeKit… but so much more!!