Best Student Discounts??

So what are the best ways to exploit society and save money while being a student?

I know there are many places that offer student discounts, I’ve found a couple such as:

http://www.studentadvantage.com/discountcard/

http://www.academicsuperstore.com/students

I’m not certain of the validity of them. The discount card costs 20 bucks/year
The second link shows some decent discounts on software, etc.
What else is out there?
Anything tried and true?

Not throwing away your ID when you graduate?

Wear a big hoodie and fill if before you walk out of the store.

‘exploit society’

?? go on…
edit:
just saw the edit… but i’m mildy confused lol

http://ubmicro.buffalo.edu