One of the most valuable things my dad taught me was that it's hard to break something so badly that it can't be repaired. That's not true of everything any more (I have a decent electronics bench, but I won't even try any but the most basic cell phone repairs), but for your list (Furnace, A/C, House appliances, Home repairs, Furnitures, Cars, computers, even clothes & shoes), I'd rather repair than replace.
It is harder to teach kids this attitude now. So many things that interest them are seam-welded or potted or otherwise inaccessible. It's still possible though. My daughter and I disassembled old DVD drives and made laser pointers from the diodes that still worked. She was excited to take things apart after school.
It is harder to teach kids this attitude now. So many things that interest them are seam-welded or potted or otherwise inaccessible. It's still possible though. My daughter and I disassembled old DVD drives and made laser pointers from the diodes that still worked. She was excited to take things apart after school.