DE blades are really not suitable for re-sharpening, but the early SE razors actually came with blades that were intended to be reused, frequently a 7 day kit of them, and often included a blade holder designed to aid in stropping them. The old SE razors that have those blades can be a little pricey, and many of them have blades that may no longer be viable, but if you really enjoy the challange and are patient and can afford to get one of the pricier SE "sets", there's no reason why you can't shave like a modern 1890s man, so to speak, the early SE "lather catcher" razors generally have a rep for being great shavers, so it should be worth the effort, at least.