Digital password management systems secured by a single ultra-strong password, something you can remember but nobody else would guess, are available to store your passwords and automatically recall them as needed. The best password managers also function as automated Web form fillers. These services encrypt your data, create strong passwords, and protect against unauthorized users.
I use Apple products including their Mac computers. Their Safari web browser has a "Key Chain" application that, once enabled, offers to save user names and passwords. There are similar functioning products for PCs. You simply enter the information one time and each time you return to the site it will automatically fill in the right information. A small problem I have experienced is with two different accounts for the same company/website. In those cases the program remembers info from the very first time you visited the site and doesn't allow you to choose a different user name. You do have to worry about other users of the computer logging in so it is best to set up different user accounts on the computer with password protection.
If you are on the go and need to access information on multiple computers, platforms, and locations look for web/cloud based applications. Your data is encrypted and stored securely online. Be aware, as additional security, if you forget your login information for the password manager, there are no password hints or others ways to access and recover your data.
Password management applications with various features and services include Kaspersky, Last Pass, RoboForm, and Sticky Password. Currently, there are only a few premium services for mobile and tablet devices.
Old School Notebook/Binder: One non-digital way is to have a small notebook with all your account numbers, user names and passwords. Information can be crossed out or covered with white out and replaced with updated information. This is convenient and easily accessible when you are at home or on the road. You won't have to worry about a computer program or hacker accessing your information. The obvious problem is a notebook can be left behind, stolen, or destroyed. If you do keep your information written down it is best to hide it in a safe or drawer that can be locked.
We all have heard that using the same username/password for everything is a bad idea but few heed the warning. To help you protect your information and stop the cycle of "Password Resets" consider these ideas for managing your passwords.