I just got back from Wally World. I found the twin 15lb packs...unmarked and sitting alone in a corner. I noticed that they were wrapped in BLUE plastic, not the normal clear of the regular twin packs. Took one twin pack up to the register for a price check....6.98 Told the cashier I wanted 5. 150 lbs of charcoal for 37 bucks. Kick A$$!!!