The acetone vapor method is dangerous and can melt the plastic if you're not careful. Aerosol clear coat sounds safer. I've been meaning to try NextGen myself after reading some positive reviews.

Overnight best? Not for me (and @shah.barbara's crust was great).

Day three?! What on earth did they even do? That's wild that a single mistake was so big you had to rebuild the whole training from scratch. That must have been a pretty serious mess to clean up. Kinda makes me nervous about what our own training misses.

Dealt with my neighbor's leaf blower every single Saturday. Drove me nuts while I was trying to edit videos. Went to the hardware store and bought a ton of that sticky weather stripping for doors and windows. Also nailed some old moving blankets to the shared wall in my garage setup. It looks ridiculous but cuts down that high-pitched whine so much. Now I just get the low thump of his terrible music.

Read somewhere that dry bricks suck moisture from the mortar too quickly. That can cause weak joints and cracks over time (which is a real pain to fix later). Soaking them first just makes everything hold together better.