lol..i actually not proud of my business site. I made it it quickly one day several years back.
The biggest problem for me has been I have been so busy with other people's sites and never spend any time fixing my own.
By the way W3C is lame. The W3C site for years was actually not compliant to its own standard. Many large sites (Yahoo, MSN, etc) fail to meet its compliance issues. An HTML validator is a much better tool to use.
But you are right and I should spend a few moments and clean up the code.