> Every so often, I go through my refrigerator, check labels on the items, and throw out anything that’s a month, or a week, or maybe a few days past the date on the label

Does anyone actually do this for real? In the overwhelming majority of cases it's extremely straightforward to determine if the food is safe to eat empirically. Only in a couple highly specific cases do you need to be conservative about eating old food (meat products and cooked rice are the two I worry most about, and I don't eat much meat so it's really just the latter). If it smells bad or tastes bad: don't eat it. If you can cut off or pull off the parts that are bad, but the rest is good: you're fine. Humans can (and have) survive and thrive on a shocking variety of food items and qualities, this level of omnivory is one of our biggest evolutionary advantages. I don't even look at the expiration date unless I'm already concerned that the food might be spoiled. Am I just weird? I thought everyone did this.