How can I use a Molly bolt effectively for hanging heavy objects on drywall?

To use a Molly bolt effectively for hanging heavy objects on drywall, first drill a hole in the wall, insert the Molly bolt, and tighten it with a screwdriver. The bolt will expand behind the drywall, providing strong support for the heavy object. Make sure to follow the manufacturer's instructions for the specific weight capacity of the Molly bolt you are using.