...what razors do you use, and what is your facial hair like?
I have a fairly tough beard and moderate density. I can get about 4 to 5 days of shaving before retiring the blade due to performance. However, I decided that due to the relatively inexpensiveness of DE shaving that I would shave with a blade 3 times and discard.
I have never been able to get more than a few shaves out of a Feather. But man, are they sharp.Maybe if I used expensive blades like Feathers I'd try and make them last.