Once you have a product idea, you can teach people to build it, build it for them or sell them the tool itself. Here's what each one looks like, what you give up with each one and how to decide where to start.

Our house has been on the market and our agent wasn't sending updates, so we assumed nothing was happening. A simple weekly report would have fixed that, and the same kind of gap shows up in almost every industry. Here's how to spot one and build something to sell.