You can change your ClientLook password at any time. After logging in with your current password, click your name in the upper right corner of any ClientLook page, then select "Edit profile". Enter a new password with a minimum of 6 characters.
A few best practices:
Don't use a password that you use on another web site
Avoid common passwords like "password" or "123456"
Avoid using easy-to-guess passwords like a spouse or pet's name
Change your passwords periodically