You may have read a lot of advice about your ductwork. There are articles saying everything from have them cleaned yearly to never clean them at all. The truth, of course, is somewhere in the middle and will depend a lot on your family and your lifestyle.
Why should anyone bother getting their air ducts cleaned? If they’re clogged, a good cleaning can actually improve your furnace and AC efficiency and extend their lifespan. The key is to know when you need it and when you don’t.