Red Squirrel
No Lifer
Boiling water works well if you want to kill pretty much anything, but without contaminating the soil. When I get desperate I will use Weed Be Gone which is safer than glyphosate I think... but also won't kill the lawn, but I try to avoid chemicals as best as I can. When I do use it I only do the front lawn just so I don't start getting complaints. For stuff growing in driveway cracks or similar situations where I just want to kill all vegetation, I use boiling water.