I'm a software engineer and I do most of my own car work. Can't do everything though, I don't have a lot of room for tools that I'd rarely use.
Paid someone to fix my air conditioning vents though because I'd have to half disassemble the interior of my car to do it and I knew it would take me longer to do than I could have the car out of commission. I really hate the vacuum controlled vents in mid 2000's Ford trucks. I had a vacuum leak - somewhere.
Motorcycles are great for that. Except for a few really high end modern bikes (mostly BMWs) they are mostly repairable with nothing more than common tools and a little ingenuity.
Paid someone to fix my air conditioning vents though because I'd have to half disassemble the interior of my car to do it and I knew it would take me longer to do than I could have the car out of commission. I really hate the vacuum controlled vents in mid 2000's Ford trucks. I had a vacuum leak - somewhere.