Dear Wife is a Filipina. A few years ago, she went back to the Philippines for about a month to spend time with her family. So, I had to make all my meals. I emptied the shelves with all our canned and dried goods and decided that I would use what I had. With the exceptions of buying fresh milk and bread, I just used up whatever we had in storage for those 4 weeks.
I'm not saying I had my favorite foods at every meal, but I did manage to reduce all our canned goods in half and made a nice dent in the dry goods as well. Also, I took advantage of that process to use up all the oldest food in storage first, kind of rotating the food stock at the same time.
I think I only went to the grocery store once that 4 weeks, like I said to buy fresh milk and a loaf of bread.
When Dear Wife got back, she was happy to see how much stuff I had emptied from the shelves. I have since tried to convince her that we need to do something like that periodically, and empty those cupboards of the stored food, but that runs against her nature. Back to going to the grocery store 3X per week, buying new food for supper, and the old canned and dried goods just get shoved to the back of the shelves.
Oh well, if she goes on vacation again, I'll have lots of new "old" food to go through for another 4+ weeks.