Which Thing First (WTF ) is a super-simple way of working out your priorities, letting you discover the most effective order of doing things. Getting Things Done (GTD) by Dave Allen is a great productivity tool. But how do you know which Thing to Get Done first. 'Which Thing First ' helps you work it out by asking a series of questions, forcing you to consider each task against each other. This FREE version of the app is fully functional, but limited to 4 tasks.
When faced with a decision, use Whichie to poll your best buddies for their opinions. They vote ("Like" or "Meh") on your choices, and the app then uses a complex mathematical formula (number of Likes minus number of Mehs) to order the choices by popularity for you. Whichie has its own website and a cloud service that keeps your app and website in sync. To get started, go to http://www.whichie.com to sign up for an account (takes about 10 seconds), and check out the FAQ for a how-to.