Add option for browser login to ask five random characters from your password string.
To have the option to not use the full password at login, but random digits from it. This has the advantage that even if the entered password digits are captured from keyboard or by other means they won't be useful for another person to log in. The algorithm can reduce the variability if logins come from the same ip address or machine, so that capturing multiple login passwords from the same computer would still not reveal the full string.
2 factor authentication would be way more appropriate. It's implementation using TOTP (RFC 6238) is quite easy in any programming language and many apps for smart phones and desktop operating systems are readily available.