If you’re still coming up with your own passwords; however, then there’s a good chance that you forget them from time to time. If you’re trying to log into a site that you’ve saved the password for in your iCloud Keychain (that thing that makes it so the password field autofills), then you can actually ask Siri what the password is.
CNET pointed out this week that if you say “Siri, Show me my passwords” it will launch the passwords page in settings and show you all the passwords you have saved. Alternatively, you can just ask Siri for the password for a particular site or app and she’ll take you to the account page in settings with the password information you requested.
Both options require you to prove your identity through Face or Touch ID, so random people who have your phone can’t use get access to all your passwords.