There is a wonderful Blog written by LDSMomof 7.  She provides a great service to us all.  She compares pricing for caselot sales among the grocers in our area.  How great is that.  With the ongoing caselot sale at a major store, you can use her information to determine if you are really getting a good bargain or not.  What an incredible service she provides. You can see her work at this link.