Exfoliate... uh.. what?

I love how fashion magazines are always crowing about exfoliating the skin, especially before shaving or waxing. Does anyone really do this? I decided to give it a try by using some old foot scrub that I wasn't into using anymore.
What's the verdict? Shaving my legs was the same boring experience as always. I did find the Dollar Tree foot scrub worked pretty well as a shaving gel. Use, re use, substitute!