Slamming the heavy front door can push it out of alignment. Eventually, the door may get really tough to open and even have a gap between the trim and jamb that could allow moisture and cold air to seep in.
Fix: Replace the existing hinges of the door with self-closing ones so that the door can softly close without slamming.
If your neighbors, coworkers, family or friends are looking to buy or sell, your referral is much appreciated.