Special on Feather blades
Feather blades have so far given me the best shave. In the usual 10-pack they run about 60 cents a blade (plus shipping). But
here’s a deal (see update): 100 Feather blades for $24.00: 24 cents a blade (plus shipping), for a blade that lasts 4-7 shaves, depending on how well you prep your beard, how tough your beard is, how good your technique, local restrictions may apply, etc. For me, in Monterey CA, they ran 32 cents a blade including shipping. Still a bargain.
That sure beats the price of a multi-blade cartridge all hollow.
UPDATE: Feather blades are no longer available at the link. In the meantime, I believe that Pauldog of ShaveMyFace.com still offers Feather blades for bulk purchase. You can send him a private message on the forum to inquire. You can also see whether you can get a bulk purchase deal from RazorandBrush.