It not only slows our trip down, but it can also be expensive.

And as more and more of us try to carry on, the problem is that there’s no guarantee there’s enough room for our bags in the overhead bins, especially if you’re in boarding group number 5.

In fact, there won’t be enough room. On everything other than a 777 or an Airbus 350, the overhead bins can’t handle the carry-on bags.

More and more airlines are now asking for volunteers at the gate to let them gate-check your bags at no cost.

This, in turn, is angering those passengers who already paid to have their bags checked.

Is there a solution? Other than pre-boarding with your bags — not always possible — try and fly with the smallest carry-on bag you can so that it will at least fit under the seat in front of you.