The last weeks of December through the first week or two of January provide most of us with that most valuable of commodities: The time to think.
That business book you've been planning to read? Now's the time.
That morning you've wanted for a "retreat" with yourself? Take your notepad to a coffee shop and start scribbling ideas.
Those thank you notes that have been backed up for some time? The end and the start of a year provide ideal moments for recognizing accomplishments and giving best wishes.
And there's the time-tested way to trigger insights about your career: Do something completely unrelated to it. You'll be amazed at how many thoughts will come knocking when you are not looking for them.