Be safe.   Don’t be stupid.  Use a password manager plugin and don’t use the same password for everything.  Just don’t lose the master password!  We use Lastpass, which is a Chrome plugin, and it works perfectly.  Set it up and each time you enter a password it will ask you if you want it remembered.

Link: https://www.lastpass.com/

Cost: None.

Time: About 10 minutes to set-up.