I've toyed with the idea of using a straight razor.. but I honestly think I'd have better luck sticking my face into a lawn mower. Certainly have the same effect..
Be really manly and get a straight razor. Then you don't have to buy blades. I used one for a while, many years ago. Didn't mind the results. Have thought about acquiring one again, as a simple SHTF solution to shaving. As for the safety razors, it's been decades since I used one and I must admit I never cared much for them. They tended to cut the crap out of me every so often. Nowadays I stick with the expensive multiblade razors and haven't had so much as a nick in ages.
I actually shave with a straight edge, Thought about going ot safetly razor but kinda skipped that step: Here are two great links from the AOM website. great site btw. They have links in there that can help you with what you are looking for.
the top one looks similar to one my uncle had. i used it a few times when i stayed at their house when i was in college. i really liked using a safety razor, but i am lazy and just buy a bag of gillette good news (cheap blue disposables). they work good enough for me. i have used the 2 and 3 blade cartridge razors, but those things get so damn expensive i quit using them and have never tried any of the newer types.
i've had a straight shave at the barber before; feels great but i never looked into getting one. i know i wouldn't take the time to keep it sharp enough to be useful. if you find a good safety razor you like, let us know. i might be interested in a change as well.