For this week only, buy any two blocks and get a third block, of equal or lesser price, for half price. Buy four and get two more at half price and so on and so on. My system can't calculate this sort of reduction so there's no code to input. Just go through the normal check out and I will send you an email with the discount calculated and refund the appropriate amount immediately upon capture of your Paypal funds. As always, your purchase is backed by a no questions asked money back guarantee. This sale will end at midnight EST on Sunday. Thanks for your interest and support.