If you find yourself updating phone settings frequently -- such as 4G or Wi-Fi -- depending on whether you're at home, work, or any other location, the Locale app can automate much of that screen tapping effort. The app changes your phone's settings automatically depending on where you are. For example, you can designate VIP callers -- the boss, say -- to supersede silent mode. It's perhaps a bit of luxury at $4.99, though the ROI case might be made by the potential embarrassment of your Lady Gaga ringtone sounding off during a staff meeting. Locale will switch ringtones when you arrive at the office.