Problem: How to clean up gasoline
Stop the spill at the source.
First thing's first-before you get too worried about how to clean a gasoline spill, you'll want keep it from getting any worse. If you've accidentally knocked over a fuel tank or container, return it to an upright position immediately and secure the lid or cap over the opening.

Answer: If the spill originated from a pump, make sure that it's shut off and that the nozzle has been replaced. Even a small gasoline spill can quickly become dangerous.

Problem: How to make edible sand
Blend the chocolate and whole graham crackers in a food processor.
Blend on high speed for about a minute or two, until the graham crackers resemble the consistency of sand.
You can also crumble the crackers by placing them in a ziploc bag and whacking it with a rolling pin.

Answer: This process takes a little more effort but it works just as well. Pour the crumbled graham crackers into a large bowl.

Problem: How to install landscape edging
Mark the area with spray paint.
Use an old garden hose to mark the perimeter of the area you want to edge. Once it's laid out in the shape and size you want, spray paint the ground around the outside edge of the perimeter.
Answer: Dig a trench with a spear-headed shovel. Use the shovel to start digging a trench along the spray painted line.