This exercise is often used at the beginning of a regular deadlift workout to activate the nervous system, but it has several benefits. It hits the core musculature and it's even a tremendous movement for the traps and lats.
Grab the bar in the center with one hand. If it feels unbalanced as you reach the knee, put it back down and reset. Keep the bar as close to your body as possible during the lift.
I was going to call this article "6 Things I Hate," then I realized I'd be a hypocrite. I tell my seven-year-old daughter all the time that hate is a strong word and it should be used with caution. Hence the new title.