BuyDig offers the Lexar 64GB JumpDrive S50 USB 2.0 Flash Drive, model no. LJDS50-64GASBNA, for $27.99. Coupon code "FLASH" cuts it to $19.99. With free shipping, that's tied with our mention from a week ago, the lowest total price we could find by $25, and a very good offer for a 64GB flash drive without rebate hassles.
Note that you can place an order but it won't be processed until April 17.