I have read in a book that 1 cup marigolds and one cup geranium leaves mixed in a blender with 2 cups 20% vinegar works really well for an organic weed killer.....I'm not sure if its just the vinegar or the combo but I'm gonna try here this year for everything except dandylions. We solved our problem of yard space by turning 900 sq ft of the back yard into a garden! :-D Then the plants take care of the rest. I know down south there in Denver area HOAs can be really nasty :evil: If you dint have a nasty HOA I would just give your neighbors a jar of honey this fall and tell them sorry spraying weeds hurt my bees that make this honey so I don't do it. I bet you would be surprised as to how many of your neighbors quit spraying their yards too... but maybe not.....