Sharing passwords with others is not a good idea, whether it be in a private setting or at work. You never know what will happen to your password. Are you sharing an account with your colleagues? Then use a password manager to share the passwords securely.
Don't stick a note with your password on your screen or put it next to your computer. It is not safe to keep passwords in an e-mail or in a document on your computer or smartphone. Hackers with access to your device can easily find that document among your files.