When people don't use the products that they're trying to sell it will show. A while ago I met a guy who's created yet-another app to allow people to start a st

When people don't use the products that they're trying to sell it will show. A while ago I met a guy who's created yet-another app to allow people to start a store online. I asked him if he's running a successful store on it yet? He thought my question was irrelevant. 37Signals have always built apps that solve problems they've had. http://gettingreal.37signals.com/ch02_Whats_Your_Problem.php http://gettingreal.37signals.com/ch02_Whats_Your_Problem.php If you're working on an app that solves your own problem (and you believe that the problem you have is not unique) then the likelihood that your startup is going to succeed must be much higher.