Use vinegar on weeds on the sidewalk or driveway but not on the lawn. There is a weed and feed fertilizer which will kill off the weeds in your lawn and then the fertilizer kicks in to help fill in the holes with new grass.
Here's what I use: Take a spray bottle and cover the bottom with salt and fill it up with vinegar. Add a few drops of dish soap and shake. Spray on the weeds.
You could give these a try.
Boiling water - I do 2 kettles a day. Epsom salt followed by boiling water. Or plain old white vinegar. Method depends upon location of the weed(s).
Hi Sandra - The struggle is real, isn't it?!? This is the most effective all-natural weed killer DIY that we use. It's even been featured on Hometalk! Hope this helps! Hugs, Holly