I am a college student flying home on frontier airlines for winter break tomorrow. What would happen if I just didnt pay for my carry-on? I am flying out of a very small airport on the red-eye flight and could really use the $35-40 I could save. If I use the electronic check-in kiosk and just dont mention it, there shouldnt be any problems right? Any advice would be appreciated! Merry Christmas/happy holidays to all of you!