11 Carry-On Packing Hacks That Defy Airline Baggage Limits

3. Exploit the Duty-Free Bag Loophole

Make a small purchase at a duty-free shop after passing through security. Airlines rarely count the branded shopping bag they provide towards your carry-on allowance. Once you have the bag, discreetly slip in a few extra items you couldn't fit elsewhere – perhaps a rolled-up jacket, a book, or some last-minute souvenirs. Act natural; it just looks like you did some airport shopping. This subtly expands your carrying capacity right before boarding.