My 4Sevens needs some new batteries. I went to Walmart, blithely thinking that if anyone had some good prices, they would. Boy, was I wrong- they had two-packs there for ten dollars each. And these were freakin' Rayovacs on top of that! I always thought Rayovacs were the batteries you bought when you didn't feel like paying extra for Energizer or Duracell. I figure if I buy some in bulk, it may be a bit cheaper. Anyone know of some good places?