Shaving with the Rolls Razor
The Rolls Razor looks exactly like a small section of straight razor, and you do indeed strop it to sharpen it—the blade is permanent. After you sharpen the blade, you take it off the stropping device, attach the handle, and use it like a safety razor. It even has a sort of blade guard. Here’s a video of a guy using one, thanks to TG, a fellow shaver.
Think of it: no blade expense at all, ever. Take that, Gillette disposable blade/cartridge.