i was using yesterdays news and care fresh, between the guinea pig bedding, litter pans, and the rabbits litter. 19.99 for each and i was going through one bag of carefresh a week to week and a half, and YN every 1 1/2 to two weeks. monthly it was killing me i was putting out at least 80.00 a month for bedding stuff, so i switched everyone over to Equine Pine and it works really well. it is horse stall bedding, the only thing i dont like about it iswhen it gets wet it breaks down and i worry about the dust created by it, and when the buns jump out of the box it gets on the coroplast and it is a fine dusty stuff. but so far so good. for a 40 lb bag it is 6.39 and i go through about 2-3 bags in a month so itis saving me a ton of money............