After getting the Smartshake shaker this afternoon.. had a look around Vitacost and found ON 100% whey to be very cheap :)
Normally I get the 10lb ON whey in store for $140+.
Best price I have seen online so far, initial price $36 + $3 standard shipping to Australia but with a $10 referral coupon code the price is reduced to $28.30AUD shipped.
Clearance Sale on Optimum Nutrition Protein and Other Items
Free Shipping with all Items Purchased
Free Blackout Pre Workout with any purchase over $200
I'm a big fan of Serious Supplements and feel obliged to let people know about the sale they have running.