It's his last day on the job - sort of. Today marks Bill Gates' last full-time day of work at the behemoth he created: Microsoft.
For a photo recap of his career, click Gallery above.
While he'll no longer be in the office everyday, he'll remain on as non-executive chairman at the company which made him a billionaire.
Now, he'll be using his free time and spare cash to help improve healthcare and battle poverty with the Bill and Melinda Gates Foundation.
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