New Library: Moar for LESS (CSS)
Moar is a LESS framework that was created to make slicing different types of websites and applications smoother. Get MOAR for LESS out of your CSS!
You can find it in use here:
Note (03/20/2012): For the most part I use Bootstrap by Twitter these days. Some of MOAR is still helpful (and lightweight) but not necessary if using Bootstrap.