Quote Originally Posted by thebigspendur View Post
I pay it all no mind these days. Three or four shaves at most with a blade and it goes in the trash period.
I realize I'm Obsessive Compulsive...LOL. I use a Merkur Furture set to 3 and have a moderately light beard. I shave one side with the blade on the "3" side and the left on the side with the "6". I pitch the blade after 7 shaves.

After several weeks now, I realize that I could probably use one side continuously and never realize a difference in the feel of my shave.

I was getting 65 shaves out of the 5 blade Fusion cartridges and was thinking my DE would last a very long time, but at about 40 cents per blade, I throw them out after a week and don't worry about it.