I finally replaced my classroom glue bottles with ones that behave.

Not new glue….Just new bottles. The old bottles had two problems. They tipped over at the slightest bump. And in storage they’d suck in on themselves, so the sides were caved in by the next time I pulled them out.
These replacements 8oz don’t tip, and the sides don’t collapse while they sit on the shelf. The Tap-N-Glue lid puts out a dot of glue instead of a puddle, which is exactly what cut paper needs. Before my classes mounted their chrome emblems, I demoed glue methods and the drop applicator lids. Less glue squeezing out from under the edges means less glue on the black paper, on the table, and on the kid.
I keep about 36 bottles, about of dozen of those are extras. If a tip acts clogged, we swap it for a working one to gluing can continue and I’ll check the problem one later. I really recommend white school glue rather than the non-classroom variety (Elmer’s Glue-All). The school glue tend to store longer, flow better and clogged caps are like new after a soak in water