Man, talking about pot calling kettle I am actually cleaning out my fridge today to make sure that I know exactly what I have in it. I honestly think this is something that should be done. Once a month. Just use hot soapy bleach water to clean the fridge. I also make sure I refresh the baking soda box to make sure the fridge stays smelling great. I also clean out the freezer as well the same way and put a box in the freezer as well.
Once you have a clean and organized fridge you can see what you have. This not only goes for your fridge but your stockpile and your cabinets should all be organized and in order so that you know what you have on hand.
What do you do to keep track of what you have on hand?