Well that's gotta feel bad.
When I make my sites, I always have my girlfriend and some of my other friends help me test them. She's got a bit of computer literacy from me, but my friends are the absolute antithesis of a web-savvy person. They also all use a different variety of web browsers, which is a plus.
I try to make my sites as user-friendly as possible, but there's a quote floating around... something about a war between programmers and end users, where the end users are winning.