Brainstorming is most effective when participants do background research so they understand the topic, a moderator is selected to guide the process, and post-it notes are available to capture as many ideas as possible without judgment. Successful brainstorming follows rules like deferring criticism, building on others' ideas, focusing on quantity over quality of ideas, and allowing only one conversation at a time. Proper brainstorming dos include research, listening to others, and ensuring any conclusions are implemented.