Sprinkle road salt over where weeds grow.
Keep some salt that you use to defrost driveways and walkways for natural weed treatment. It works wonders with table salt. It is an inexpensive option with no health risks.
Use newspaper to choke them.
You probably have a lot of lying around at home. Take newspaper sheets and place them over a piece of weed. In a short time you will see less growth.
Take a jug of vinegar and quickly take care of the problem.
White vinegar is very acidic. It kills the most annoying weed. It's also something you probably already have in your pantry so you don't have to go to the store quickly to buy it.
Create a solution of hydrogen peroxide and water.
An inexpensive drugstore supply can be mixed with water and filled into a bottle. Spray the solution on the weeds. Leave for 15 minutes and then rinse off.
Fill a bottle with lemon juice and water. Spray the solution liberally on the weeds. If you want it to be stronger, put vinegar in the bottle.
You may find that some organic treatments work better than others. It may take some experimentation to find a solution that will quickly get rid of weeds. With ten organic weed treatments, you have a lot of ideas to work with.