>> be sure to label properly with a permanent marker.
Amen! I had some dilute Miracle Gro in one spray bottle, and insecticidal soap plus alcohol plus dishwashing soap in another bottle.
I forgot which was which and "watered" a plant in a quart yogurt tub with lots of soapy alcohol. Dead plant, overnight.
It wouldn't be that bad outdoors, using reasonable amounts to spray the leaves. I gave this guy a good, through watering with something that wasn't water.
Little Willy was a chemist.
Little Willy is no more.
For what he thought was H2O
was H2SO4.