I've changed about 70 login passwords for services and websites. One thing I noticed: most of them do not say "you must not use THESE characters" when creating a password, but they say "allowed characters", especially in regard to special characters. So I had to fumble quite a bit to enter all special characters to create a password meeting the ever-changing requirements of the websites/services .
So, it really would come in handy, if in password options, the option would be "allowed characters" instead of "do not use the following characters" - or we have a choice of both options. So, we could just copy and paste the "allowed characters" description from the website and make it easy to create a password for the websites/services requirements.