Being a web-savvy person myself, I'm not thrown by this particular usability error. It's an easy one to make when working with templates; I have pages myself with this problem. However, I do think it's worth pointing out.
It's standard just like stubbing your toe is standard. Everybody does it sometimes, but it's worth avoiding.
See #10 on this list:
http://www.useit.com/alertbox/20031110.html