Yes. A properly set-up Access Database as suggested above (sometimes even cohen comes up with some really clever suggestions
-jKz-), or Excel with the aid of VBA if you're into programming. Depends on your needs. If you want an actual customer database, Acces would probably be better or at least easier, and definitely more practical if you're building up a really big database. If you're planning on some kind of sign-up thing for your LAN parties (which I wouldn't think requires a massive database with thousands of entries), Excel+VBA will do the job fine and allows for more tinkering around and customization, adding features&whatnot since VBA is a programming language. Even excel alone can do it, but if you're not into programming or don't know Visual Basic/VBA, I'd say you're better off with Access.)
