In the previous entry, I mentioned that I had started playing around with writing my own point-of-sale software, so that we can build our own cash registers more cheaply than a commercial setup. Well, I goofed around with that this weekend, and put up a rough draft of the kind of thing I'm thinking about (and some related pondering.) You can get the (Unix) source code over on the src page.
I'm not really sure this is such a good idea. Maybe we should just stick with post-it notes and cigar boxes instead of cash registers.