The battle for overhead bins is raging. These are the rules to play by.

You know, the travelers who stuff everything they lugged onto the plane into the overhead bin as if they own it. It sounds unfathomable but one traveler reports that a fellow passenger removed her CPAP machine from the overhead bin last summer to make room for a bag. They take offense when other travelers or flight attendants ask them to put their backpacks, their only carry-on, underneath the seat to accommodate another passenger’s bigger carry-on. Ridgeway says he started to politely argue with the flight attendant but didn’t want to get kicked off the flight like Ben Stiller in “Meet the Parents." The bottom line: There isn’t enough space in the overhead bins for all of our carry-on bags, no matter the size.