What have you been 'thinking' today?  How many of us are too busy to think.  Reflect on when you last had a revelation or an Aha! moment.  It probably wasn't when you were busy busy busy.  It may have been before you went to sleep, during the night, whilst you were driving, swimming or generally when you allowed yourself the space in your brain, simply to think.  By planning in 'thinking' time you really can be more effective.  As they say, sometimes, doing less results in achieving more.