WHO KNEW? 5 pound bags of Baking Soda at Costco for less than $5.00 - then : Sweep Baking Soda into Sidewalk Cracks to Discourage Weeds. Simply pour or sweep a thick layer of baking soda into sidewalk and patio cracks. The baking soda will kill any small weeds that are already there, and prevent new ones from sprouting.
If we have a hill on our next property I know what I am going to do with it! Lovely hillside garden, steps & slide. I would extend the steps so that they are more like stadium seeting and then we could use it for outdoor movie night.