The Best Warm-up
If you value the long-term health of your muscles, joints, and body in general, I hope you're warming up before you put a couple hundred pounds on your back and squat it below parallel. The only real question is, what's the best way to warm-up? Scientific research leads us to believe that a dynamic, movement-oriented warm-up going through full ranges of motion is the best option available, not static stretching.
Just to make sure, this means actual light squats right? leading up to the worksets?