Is there a pet safe remedy to kill weeds without killing your plants?

I sometimes pour boiling hot water directly on the weed. This has worked for me.

Use a weed preventer as directed and it will help keep weeds that grow from seed under control. Other weeds that spread by roots have to be killed all the way to the mother plant. I have found that weed preventer does not stop trees from sprouting from the seeds that drop off trees, but they are very easy to pull when they are small. I guess I am lucky to be getting older and not have problems yet with doing things like weeding. I love sitting in the garden on the earth and pull up the nasties. Any hoo, the weed preventer would help you a lot. I know it has helped me cut the weeding time in my gardens.

I have a crack in my bathroom sink. It is porcelain. Can it be fixed.