Wikipedia may be your friend here, there's probably stuff about his time in office.
Rail privatisation/franchising and the closures of coal mines I agree should be included. You may want to look at Norman Lamont's time as his chancellor for economic impacts. As for personality, his love of cricket (later became Surrey CCC president) and also of Chelsea FC could be mentioned. I think under his time as Prime Minister we had the start of what is now the Department for Culture, Media and Sport.