We got rid of the cabinet doors in our kitchen because the laminant was coming off and they were sagging a bit. It was an easy job with a big payoff. This is just a temporary fix to keep us happy until the kitchen overhaul happens.
Our mid century house, being over 50 years old, settled a bit, leaving some uneven floors around the exterior walls. This is kind of a bummer if you don't want your drink sliding off the night stand, so we solved this problem with some resourceful ingenuity by making shims out of a door mat.