Focus is a such obstacle for those of us with ADD. I use an iPhone app to help me work on one thing at a time.  Right now I am working on being a better listener, trying not to interrupt people, trying to think before I speak. I think kids old enough to have a phone could benefit from this sort of robot reminder system. There are a lot of reminder apps out there. I use one called EchoX. Basically every few minutes, I get a vibration that serves as a reminder. I don't need to look at the phone. But I know that tap means, calm down.