Pet password hates
- companies that don't allow you to paste a password, and don't allow the entered password to be visible. So either you have to have a short one that's easy to remember and type accurately, or else you have to write it down.
- companies that ask you for a memorable word that THEY specify: Like "favourite piece of music" (mine changes weekly) or "mother's maiden name" (my grandparents didn't speak much English and my mother's name was wrong on her birth certificate, so I know two versions.) Etc etc.
- companies that reject passwords that don't comply with their rules, but they don't tell you what the rules are. Sometimes they don't even tell you that there ARE rules, you have to work out for yourself why your registration isn't accepted.
I have hundreds of passwords, so I use KeePass with a long pass-phrase, including a number that hopefully I won't forget until I'm too old to care. The KeePass data file is synchronised to my mobile via DropBox so I can also use their mobile app. I don't feel that my security is too bad. But I think it would be better if more companies allowed pass-phrases with spaces.