"Baking soda neutralizes the ph in the soil and nothing will grow there. use baking soda around all of the edges of flower beds to keep the grass and weeds from growing into beds. Just sprinkle it onto the soil so that it covers it lightly. Do this twice a year - spring and fall."
Plywood floor. Inexpensive paintable floor. A pinner said "Did this in our house...we just put the sheets of plywood down and routed out grooves...then some stain and poly...its been ten years and still looks great and we love it..."