At a recent Refresh meetup I did a quick demo of Breakpoint. It's a tool I wrote that let's you quickly make responsive layouts by generating media queries for you. Someone at the meetup suggested that I do a deep dive into Breakpoint at the next Pink meetup... so let's do this!
Breakpoint uses Sass but if you do anything with responsive web design I think it's important for you to attend this meeting. Even if you don't end up using Breakpoint you will get something out of this meetup, I promise.
You can take a look at Breakpoint right now if you want to kick it around before the meetup. https://github.com/lesjames/Breakpoint