Oh great: Airlines are pushing for smaller carry-on bags
Checking bags for free is pretty simple these days. You just have to pretend like you’re going to carry on a bag, and then wait at the gate for a while until the person running the flight counter inevitably announces that the overhead bin is full and anyone who wants to check a bag can do so for free for no extra charge, and then you’re hanging out right next to the counter because you’re a savvy traveler and you knew this was coming, and then you grab a little tag from the counter person and slap it on your bag and leave it on the loading dock right before you get on the plane and then, boom, free checked bag.