Weed B Gon Chickweed Clover Oxalis (Weed B Gon CCO) will work on creeping charlie and violets. Google "Weed Control Triangle Approach" for a good article on dealing with weeds. Be careful if you have planted grass recently. Read and follow directions on anything you use.

There really isn't a "one bottle kills all" SELECTIVE herbicide. Glyphosate (AKA Round Up) will kill most any weed however it will also kill grass as well.

For creeping charlie or wild violets the CCO Becky mentioned will work but you have to be persistant and continue spot treatments until it's comletely gone. It contains the herbicide Triclopyr which kills a lot of broadleaf weeds. Be careful as it will damage cool season grasses such as tall fescue if you use it when the temps are in the 80's. It will damage bermuda too. Adding a surfactant to the mix such as baby shampoo or dish soap will help it stick to the weed leaf giving you better results.

The key to weed control is matching the herbicide to the weed you're trying to kill.