1. Breathalyzers for debit cards and cell phones. When intoxicated, many of us lose our common sense and self-control, resulting in disastrous morning sober up sessions. What if you could prevent that transaction in which you bought 10 people shots of expensive tequila? Or for the sake of our self-respect, a mechanism that prevented us from sending a 10-page long text message to our ex, babbling on in paragraphs chock-full of misspelled words and improperly used emoticons. Drunken decisions are rarely smart ones, so buying and texting should join driving on the list of no-no’s.