You probably all have heard that boiling water can be used as a weed killer, but IA takes it one step further by using “gray” water to kill weeds. I have a large decorative pitcher sitting by my kitchen sink. Whenever I rinse out a can or bottle before placing it in the recycling bin I dump the water in this pitcher. When I’m rinsing dishes, I dump the water in this pitcher. When the pitcher is full I use it in a variety of ways, and one way is to boil the water and pour it on the weeds that grow in between the cracks in my brick patio.