Well I dont have much to share about Bill Gates. I had read two articles in a book, which I am sharing below :-

a) Bill Gates was spotted as an excellent programmer in his school days and he had started developing software for the classroom sitting arrangement. The software he developed had been designed in such a way, that the girls whom Bill Gates liked sat next to him !!!!!!!!!!

Don't you see Windows + IE6 or something of that in the above design.

b) Bill Gates gave the last finishing touches to  MS-DOS in a flight. He was flying to meet IBM officials to give a demonstration of MS-DOS .

P.S. I read the above stuff in a book I borrowed from USIS.