My password theory: easy way to make strong passwords go to Wikipedia hit random article till you find something(preferably obscure) with dates eg.http://en.wikipedia.org/wiki/Priotrochus_obscurus make password from it use camel text to make it stronger and easy to remember SoWfI@1828BBd
I have one password and one username for all websites that don't have 'real' personal details, as I have not changed this from when I started using the internet 15 years ago this allows me to re stumble upon websites that I don't remember visiting without creating a new account. As for my email, amazon, ebay, bank and paypall ect..... each have a separate password and as I use linux there is small chance that i have a key logger.