Can't help thinking that Harry could do far worse than consider the example of his cousin Peter Phillips. PP may be fortunate that he is six years older than Harry and had whatever was his youthful silly season before it became fashionable for so-called friends to splash compromising pictures over the internet. However, he is the Queen's eldest grandchild, son of the intermittently controversial Princess Anne and Mark Phillips, and brother of the much-publicised Zara, so any scandalous or salacious behaviour, however mild, would have delighted the tabloids. Plus he is a rugby player, a breed strongly linked with drunken antics (note his brother-in-law Mike Tindall). But apart from doing a publicity deal over his wedding with Hello! magazine (a mistake, I think), he really hasn't put a foot wrong. Every now and then he pops into the news, most recently watching his sister in the Olympics, and as the father of the Queen's first great-grandchildren, but it is all low-key and entirely wholesome. He was about 30 when he married, so it's unlikely that Autumn has been his only girlfriend, but, again, nothing the papers thought worth reporting. I don't suppose his life has been devoid of 'fun', but he has kept it to a sensible level.
Ann