You already know about the 3.4-ounce liquid rule, right? No tubs of peanut butter or mystery jars of soup allowed. And please don’t try to bring your great-aunt’s heirloom sword as a carry-on—it’s a no-go.
But here’s the fun part: these restrictions force you to get creative. Instead of a bulky shampoo bottle, why not try a solid shampoo bar that smells like a tropical vacation? And that multi-tool you were going to pack? Leave it at home, and you’ll be amazed how often a friendly smile or a polite question can solve a problem just as well.