* Would you consider investing in a company that invents a toilet paper holder where the TP can only be inserted in the OVER position? This is a huge problem world-wide that should be solved immediately. The market is huge! B2B, B2C, you name it, there's toilet paper!
* All seriousness aside, do you have any advice for building an app that has no clear money-making potential? I've had this idea brewing for years, but no matter how much I think about, I have no idea how to monetize it.