Note that these prices are better than WalMart, Sams Club or Costco prices. I have found that buying on sale at the grocery store tends to be a better deal than anywhere else.
About every two weeks or so, Walgreens puts their milk on sale, too, usually for $2.99 per gallon.
By the way, milk CAN be frozen. Just pour a teeny little bit out so that it doesn't explode.
I'm not sure that I have a tip for making eggs last past their expiration date, but if you do, feel free to share it with me!