Credit cards, SIM cards, social networking sites and forums are just some of the many services that can give us trouble. That’s right – Each of these, now, requires passwords and codes that you must keep secrets. I can not remember everything for sure! The only solutions are the ones that we all know. Use a general password? too risky! An intuitive and memorable password? Unfortunately also too risky! Also writing them all in some paper is not a good idea – In fact, in addition to being found by others it could even be missed by us! So – what a beautiful mess!