Creating a custom 404 "file not found" page
I'd been meaning to do this for about two years. But I finally got around to finishing it tonight, and it only took about an hour.
It's an extremely basic page, not designed at all, and even uses a table (!) since I'd started this about two years or more ago and just slapped some links and stuff into it to finish it... I'll go back and redo it later this year when I overhaul the entire site from the ground up. But here's what it looks like for now: File not found.
Here's a decent how-to if you want to know how to do it. You just need to have access to your .htacces file on your web server, which can sometime be a little tricky since files beginning with periods are invisible on Macs and Unix systems. So beware of that.