Now years ago I used to watch Dad shave I think with the brown gillette blades and then the blues. One shave per blade and that was it if memory serves me right. Are there any blades manufactured to be used that way today. Sure I can throw away good blades but I was just wondering if there were any designed that way from the out-set, and made that way, cheap! Besides that I have trouble, stubborn I guess, knowing when to stop on a blade anyway. I usually end up pulling or something before it dawns on me to throw in a new blade. Jussssst wondering! Thanks.