What plugins would help you make more money from your sites? There are a ton of plugins, but many are no longer supported, broken, and incompatible with the latest versions of wordpress. I'm sure that almost everybody has been working on a site at some point and thought to themselves "I wish there was a plugin to do this...".
What are those ideas you come up with? What would make life easier? What would be just plain cool to have?
The sky's the limit, no idea is stupid or too outrageous. That doesn't mean it can all be done, but if it could, what would you do?