Here's what I have assembled so far, in particular the food and water. There are some other items but they were lost in a "tragic boating accident."
I made a run today for another cart full of water. When I brought my cart to the checkout isle, I was asked "is all that for work?" I said "nope" and just left it at that.
Anyway, just myself to look after so I should be set for at least a month at this point, possibly more if I'm careful...