What is one cool internet trick you've learned? : AskReddit
Adam Rifkin stashed this in #lifehacks
Lots of fun browsing tricks here but my favorite is PROMO CODES!
the_Hallelucinator: "Promo codes! When ordering something online (especially from a vendor you haven't used) ALWAYS google their name and "promo code" or "coupon code". Many times you'll find a discount you can apply when checking out."
hotsauce69247: http://www.retailmenot.com is my go-to site for coupon codes