Natural Weed Killer 1 gallon vinegar, 1/2 cup salt, dash of dish washing detergent (makes it stick to the weeds). Mix well, spray on weeds in the morning, rejoice in their death that evening. This works best on a sunny day.
Great idea for a large back yard: Use your solar lights. They arent just for the ground! Take a 2x4 and cut them into squares to fit the existing fence posts. Using galvanized screws - not nails - to screw a L bracket to the underneath base. Then on top, screw on the stake.