Hopefully you don't think I'm beating a dead horse here, but I keep stumbling on ideas and want to share them with you.
There are items that you should not stock up on.
Anything that you won't use up before it expires. That includes diet soda which actually do go bad within about six months. Of course if you're an advid (aka addicted) drinker of things like diet coke then you are all too familiar with stumbling along on someone else's expired stash of diet coke.
Of course that expiration warning could be applied to cheese, milk, the three heads of lettuce at Costco that seem like a great deal.
Then there are things that you don't want to be eating a lot of. Three or four half gallons of Blue Bell seems like a good idea, until you're eating it night after night.
Another item you don't want a lot of are things you haven't really tried. Once I bought these weird energy bars at Sam's with the assurance from the sample lady that I could freeze them and make them last longer. Well they certainly lasted a mighty long time, because no one including me would eat them.
I've touted the idea of making a double batch of various casseroles and freezer meals, but if you've never tried the recipe before, this is not the time to double up. You definitely want to only do that with the tried and true family favorites.
If you find a super deal on 100 pounds of rice, but won't be able to use it all before some critter of warm blodded or arthropod variety finds it. That is no deal. Not to mention that storing that much rice (or whatever) can be it's own challenge. I'm confident that we'd end up spilling a big bag before it was all over. What you could do though is share the cost of the bag with a few friends.