I use Proraso Pre/Post. Yesterday evening I thought I was finished shaving and decided to use it as a Post shave which I don't usually do. I decided to use more than normal because there was some burning in a couple of areas. As I was putting it on my wet face, I noticed how slick it was compared to when I used it as a Pre shave treatment. Maybe this was because I used so much, or because of the slick residue left over from the lather. I decided to do another touch up and had one of the greatest final touch ups of my DE shaving career. I've always read that a little goes a long way but the more I use the better it seems to be. Last night I bet I used about a half dollars worth. If you use one, how much Pre/Post do you use?