But I??ve become fascinated with wilt-pruf or MG leaf shine
I've been using "Vita-Grow Concentrated Anti-Wilt" for a couple years now, following Stinkyattic's recommendation. Works great, although it wouldn't shock me if some competitive product isn't identical (food-grade wax).

The concentrate seems to keep indefinitely. Once properly mixed (7 parts water : one part anti-wilt) the dilution has a shelf-life of only a few weeks unless you refrigerate it. Hermie recommends using sterile, distilled H2O for the mixture. You can tell when it's bad--it smells like a morgue for garden hoses. :wtf:

I just mix up a few ounces of it--enough to work in the spray bottle--and keep the sprayer in the fridge. Keeps for months like that, if necessary.

Most folks do figure out to spray the bottoms of the leaves as well as the topside, but getting everything--stems, too--helps. A second coat's helpful sometimes, too.

I helped an ex-hockey player set up a medical grow awhile back. The guy's definitely a "bull-in-china-shop" hazard in a growroom. He keeps knocking plants over, snapping off main colas, etc. No problem! He hurries out his cloning kit, recuts, dips, sticks in RR's, leaf trims, and sprays, and he's saved everything he's accidentally amputated. I'm beginning to think he does it on purpose. imp: