We also forgot an entire suitcase, but with 3 boys at the time, we couldn't afford new clothes for everyone!! Luckily, we only live 15 minutes from the airport and while the boys and I checked in, DH drove back to the house and picked it up. We didn't have time for cheap parking at that point, but I figured the extra $5/day to park in the expensive lot was cheaper than new clothes for everyone! Now I count all the bags before we leave the driveway!