I worked with a guy who did that. He had 30 pairs of the same socks. I thought I found a loophole in his plan - what happens overtime when you wash some more than others and they no longer have the same look. 

He said he wears all 30 pairs and then washes them at the same time. 

He did the same thing with his pants. 

Would you be surprised if I told you he was a systems engineer?