To master a strict airline weight limit (usually 50 lbs for checked bags or 15–22 lbs for carry-ons), you must prioritize lightweight luggage as your foundation. Modern "hardside" suitcases can weigh 10 lbs empty, eating up 20% of your allowance before you pack a single shirt. Use a digital luggage scale at home to avoid "airport roulette." Wear your heaviest items—like boots, bulky jackets, and jeans—on the plane instead of packing them. Employ the "bundle wrapping" or "rolling" technique to save space, but remember that space-saving does not equal weight-saving; it's easy to overstuff a small bag. Limit your shoes to two pairs: one versatile walking shoe and one "nicer" pair. For toiletries, buy heavy items like shampoo and sunscreen at your destination. If you're still over, utilize your "personal item" (backpack or tote) for heavy electronics and chargers, as these are rarely weighed separately by gate agents.