I keep searching for the best odor control litter, but when I check out suggestions I find the price a problem. I use Arm and Hammer and I look for sales and boxes with "extra free" pounds. I can find it from around $0.39 to $0.45 in the larger sizes and when I get a good price I buy several boxes. What do the rest of you consider an acceptable price? I have three cats and keep two boxes.