I found the perfect way to exfoliate my face without rubbing my face raw. I experienced that using a face brush to brush my face (dry or wet - I use a soft facial scrub or just my usual cleanser when I use it on my wet face) gives the same kind of results as using a microdermabrasion product.
By using a face brush you get better control over the areas of skin you scrub, and it allows to apply even pressure allover the face. Also it really massages your skin, increases blood circulation etc. And it makes my face very very soft. It works perfectly to help fade post-acne marks faster!
Here´s a pic of an acrylic face brush from the Body Shop
The Body Shop: Oval Acrylic Face Brush, bath brush, shower brush, exfoliant, oval acrylic, face brush, brush, face, oval, acrylic, accessories, skin care
I use one with natural bristles though, and the bristles are very dense and medium-soft. I got it at a drugstore.