Concentration. Seems like a simple enough concept. But how often do you forget about it?
Do you get distracted into too many projects at once? Do you start something then get a little bored so you start the next one? How many times is your work distracted by email, Twitter or chat requests?
Sometimes the new thing seems like the sexy thing. But the smart move would be to concentrate on and finish the current thing. And some projects would get done a lot quicker if you turned off the email, social media and other distractions until you finished them.
So how are you doing on that?