The only problem that can arise from all of this is that if we don't have very good memory, we can forget the password that we use to access a service, that is why it is advisable to use an application like Password Depot.
This program allows us to manage all our passwords from a very simple interface, in a very secure way. This application allows us to create a list with the password and user name that is associated to each service, allowing us to block the access to this information by means of a Rijndael 256-Bit security algorithm, that can only be bypassed with a master password.
The application also includes a secure password generator, it will allow us to synchronize our passwords via FTP and it also has a function that will allow us to auto-complete our data when we access certain web services.
If you want to keep all your passwords safe, you can do so by using Password Depot.