Seems obvious, but you'd be surprised at how many people never use their kief. Even if there's only enough to top two or three bowls, that can make a huge difference — and your lungs will agree. And don't just scoop the surface, either. Really get in there as you scrape those crevices.
I know we've warned against this in the past, but if you're at the point of making waterfalls, it's also time to stop turning up your nose at hitting a roach or two. If you have enough roaches to rip apart and roll into a generation joint, all the better. Just be careful of blunt roaches, unless you like the flavor of ash and tobacco.
Concentrate reclaim and vaporized buds can provide cannabinoid relief when you're desperate. Avoid scraping the tar off your glassware, if possible, and don't vape anything dark or too roasted; stick with the golden or light-brown buds. Will they taste good? No. Will they crackle and burn your throat more than usual? Probably. But they're still a better option than getting tar globs all over your fingers.
You can also use reclaim and vaporized buds to make edibles at home. Just follow the rules above, or get a little more picky if you have enough.