If you are bothered by weeds creeping through your pavers or sidewalk cracks, try this solution: mix 1 cup of salt with 1 gallon of white vinegar (buy this at the Dollar Store) and pour into a spray bottle. Start spritzing away! This works VERY well because the salt dehydrates the weeds while the vinegar makes the soil non-conducive to growth. Be careful because this will harm plants too!