29. The Little Tab on Mustard Bottle Caps Holds the Lid Open
That small plastic nub or hinge on squeeze-bottle condiment caps (especially mustard or ketchup) isn’t random. It’s designed to click the flip-top lid back and hold it open while you squeeze, so the lid doesn’t flop down and get covered in sauce mid-pour.
You’ve squeezed bottles at picnics and barbecues for years and fought with flapping lids without noticing the built-in solution. Over-35 grill masters and parents packing school lunches suddenly see every condiment bottle as slightly more thoughtful engineering. One less messy annoyance fixed forever.
