CRT & PC. You're doing things right, man.
For the degauss, if you can't figure out why the circuitry is failing, you could manually degauss it with either a degaussing wand, or what I do is use a power drill. Seriously. Just hold your power drill next to the screen, not touching, and turn it on and off a few times. The electromagnetic field the power drill creates will degauss your monitor for you.
After you've done it once, you shouldn't need to do it again for a while.