That $8 timer works because your brain treats the ding as a real event, not a phone buzz you can flick away. There's actual research on this, something called the Zeigarnik effect, where an unfinished task keeps nagging at you until it's closed out, and the physical walk to the machine is what closes it. You could probably use the same trick for anything that needs a body in a room, like pulling bread out of the oven or switching the sprinkler.

Tipping guides is optional, save your cash.

That part about the hose gauge being off by 4 psi is so real, I checked mine against a good dial gauge last year and it was reading almost 5 high, which means I'd been airing down way less than I thought for years. I run 12 on the sandstone now too and it's a whole different rig, way more grip and the tires just mold around the rock instead of skipping across it. Funny how the guys who've been doing this the longest are the ones still teaching us stuff.