Download KeePass 2 Portable
Whenever you require a portable tool that will store passwords of different accounts, you can use KeePass 2 Portable to save them in a single location. If you are not too sure about such a method, you can be assured that such an application uses a highly encrypted database in order to protect your passwords.
You will use a master password in order to further access any other password or login details that you saved inside the tool. The portable version is great as you can carry all of your passwords on a simple USB stick without any fears at all.