Next time they bind have a carpenter trim some of the offending wood.
Also check your hinges for loose screws and tighten them or replace with longer ones that will hold better if they're loose. That can cause doors to sag and is often overlooked but simple. Readjust the door lock catches. Trimming wood behind the hinges will also help alignment.
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Courtesy is Contagious. * In theory, theory and reality are the same.
In reality, they're different!
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