4. Flying peak-hour
Travelers don't seem to grasp the convenience of flying off-peak (generally early mornings, late nights, Saturdays, and Wednesdays). Not only are ticket prices generally cheaper, planes'll be less jammed, security lines shorter, drop-off/ pick-up areas less congested, and airport traffic way down. Sure, the 6a flight means an unholy wake-up, but you'll be far better off for the journey.