Programmers Dress Code

I usually shave once in 2 weeks .I dress shagilly to office depending on my mood.I dress pretty good only required.But i found an interesting article http://www.codethinked.com/post/2007/12/The-Programmer-Dress-Code.aspx which shows all the greatest programmers of the world how they have dressed . I thought i am the only one who dresses shagilly ,does not cut hair properly,sproting a unshaven look.But i saw the photos of every great scientist.They were sporting big beards,long hairs. So i need to start thinking of leaving long hair,long beard .