My personal travel philosophy is to travel as light as possible, always carry-on, and if I can’t fit everything I need into my carry-ons I’d rather just stay home. Of course this is a bit of an exaggeration, but with a kernel of truth. I HATE to check bags! Seasoned travelers usually learn how to pack light, how to re-use certain items (or wash them), and how to get by with a carry-on for most trips. They learn that less is almost always more, that you can buy almost anything you need almost anywhere you go, and you don’t need to panic if you forget your toothpaste. They learn that virtually every hotel on the planet has hangers, hair dryers, irons, soap, shampoo, etc… so you don’t need to pack the kitchen sink.
On your next trip try an experiment, take less than you normally would. Then reduce it some more. Then take less than you think you’ll actually need. In most cases you’ll be pleasantly surprised that you survived just fine with less and it made your travel experience more pleasant, especially how quickly you get through and out of the airport!