What is the best weed killer?

[HappyGrasslawncare]

hi wondering what the best and cheapest weed killer on the market?
for driveway cracks and flower beds wherever weeds normally arise.

[tyler_mott85]

Typical Round-up bought at any store.

If you want to apply at a customer's house you need a license from the state to do it. BIG time fines if you get caught and from what I hear they are Cracking DOWN!

In order to get a business pesticide license you have to take a test and prove that you have insurance.

[Lawn-Guy]

get round up quick pro and mix it with a little pirametol it will kill it andd keep from coming back for like a year just remember the pirametol spreads a little so be care full were u spray

[Grits]

Glyphosate