I'm going to show you six apps and i want you to write these down because they're worth writing down. take a look. this is for going grocery shopping. first of all, how do you save money when you go out? this is one of the top apps right here. we love this because -- >> is that called zipless? >> how did you know. you do that and you actually have a list of the things that you normally buy at the store. you create here. the good thing about this is, this keeps you disciplined. when you know what you want at the store, you're going to save money because you're less enticed to go into the impuls...