Big Airlines

We flew United for a trip we took recently. Our outbound flight from Chicago O'Hare was fine, but we ran into some terribly rude employees and policies on our way home. Because of the baggage fees charged by the airline, all 3 of us used 1 suitcase. We knew the thing was heavy, but had no problems curb checking it in Chicago. The only fee we had to pay was the $23 bag check fee. Coming home, the same suitcase was suddenly 6 pounds too heavy and the airline wanted a $100 fee ON TOP of the $23 we had already paid. The first attendant was so rude... The second attendant at least tried to help when she saw us removing shoes, etc from the bag. The big airlines have tacked so many fees onto everything, that flying somewhere is a chore!