You seem to treat your electronics so well. Must be a shame to have something break that you care about so much.
...others would not.
On Linux, user foxhead128 has a whole mess of different sound systems. Finding it difficult to record audio on their laptop, they resorted to connecting the microphone jack directly to the headphone jack. Instant loopback!
The backlight in mattp1133's monitor broke, so he wired in a dead laptop to power the backlight.