If you change your login password you might find that you get prompted for your "default keyring" password, this can be annoying, and sadly it isn't obvious how to change this to be the same as your new login password (or another password if you are being ultra secure!). Even searching the web can take a while to find a solution, but fortunately it was out there courtesy of a commenter named "David" in this post:
- Go to Accessories -> Password and Encryption Keys
- Click on the Passwords tab
- Right click over Passwords: login
- Select Change Password
If you change your password to the same as your login password you won't get prompted for your default keyring password when you log in.