PetSmart has a big BOGO sale going on sale through January 29 – use the BOGO Purina Dog Chow Small Dog coupon from 1/15 rp for Free dog food!  This is their Little Bites line that’s been rebranded as Small Dog.  Petco doesn’t carry what they call grocery store lines, so you can’t price match; I don’t know about PetSuppliesPlus.