What's your biggest travel pet peeve? When you travel as much as I do there are certain things that bug you more than others. Mine is when people put both their carry on AND Personal item in the overhead bin on a full flight. There is only so much room and by taking up more spots than you are allocated means someone else might have to be separated from their bag. Not only that flight attendants then have to take their time to figure out how to get the bags to fit. I have seen this cause arguments and even delayed flights. This is especially true on regional just the E175 which has less bin space than larger planes. If you don’t have a carry on and want to put your personal item in the overhead bin go for it!