We go through about one 14 incher a week...it's the best pacifier ever when I try to go to bed early or want to sleep in. I don't bother to refrigerate them because she goes through them so fast, and I don't think dogs are really bothered by most bacteria that we are anyway.
This is a picture from a while back after we came in from a walk and she got a new bully stick. She looks so funny with them when they're so big...but she chews them down quick...now she's figured out that it's easier to chew them into two pieces from the middle when she first gets them. Smarty pants