Assuming that you have plenty of accounts for emails, social networks, ftp accounts, banking services, Instant Messaging and etc. Technically you might be able to register a same ID for all of these accounts but we bet you are not using only 1 password to access all of them.
You determine the most appropriate passwords for particular accounts but the problem is - “how do you remember all of them?” For this, you can try KeePass.
What is KeePass
KeePass is a free/open-source password manager or safe which helps you to manage your passwords in a secure way. It allows you to put all your password is a lockable encrypted database. To unlock the encrypted database, you only need one master key or a key file.
Besides being FREE, it is very simple to use without bells and whistles. Alternatively you can use key files. Key files provide better security than master passwords in most cases. You only have to carry the key file with you, for example on a USB stick, or you can burn it onto a CD.
Other bonus features like strong security, portable, easy database transfer, multi-language support and support of password groups are provided too.
Download KeePass Password Safe (1.3Mb)