Most people shop for groceries about once a week or so. It's such a regular activity that you may not even notice certain details.
For example, many shopping carts have these metal loops on them. You may not have given them a second thought, but they've been there.
But why are these loops there? Aesthetic reasons? That seems rather unlikely.
No,they are there for a practical purpose. One that seems rather obvious once you find out.
That's right, you can hang your bags from the loops once you've gone through the checkout. This gives you a little extra space in the cart.
And you can protect more fragile items, like eggs. The loop supports most of the weight of a bag, keeping those eggs from getting crushed.
That solves one grocery store mystery. But what about the mystery of how every cart has exactly one bad wheel?
Or what about the mystery of why you always get stuck in the express lane behind the person with 50 items? How do they not know how to count?
Then there's the big mystery. How many free food samples can you take before they start to get annoyed with you and kick you out? This is one you probably have to figure out the hard way.
We may not know the answers to those riddles, but at least we now know about the shopping cart loops. Use this info wisely.