Weeds popping up through paving stones or cracks in sidewalks can be a huge annoyance. Here’s a solution to stop them without back breaking work or toxic pesticides. Fill a spray bottle with household white vinegar, and spray it liberally on the offending weeds.
The acidity of the vinegar with a little help from the sun will quickly burn the weeds up. Stubborn weeds may require a second application and English ivy may resist the treatment all together, but most weeds will be gone in a few hours.