This deal has ended.
Update: the deal is dead! This has jumped up to $53. Today only, Amazon has
Two Cases of Tide Powder Detergent with Bleach on sale for just $26.80 (you may need to find Amazon.com's listing on the right under the column "More Buying Choices;" Amazon is the only retailer on the page offering free shipping). This is a phenomenal deal: there's enough detergent in these cases for 190 loads, coming out to only $0.14 per load! I don't expect this to last more than a few hours. Shipping is free and there is no sales tax (except KS, KY, ND, NY, WA).