Password Generator: Random.Org
I like to generate a list of 100 passwords from Random.Org. I put them in a password protected spreadsheet. Then I just use the passwords from the list one by one. Note that these do not have special characters. I manually insert a few special characters, like -, #, ? and others. Also, each password from Random.Org should be at least 16 characters. After inserting a few special characters, then each password ends up being 18+ character long.
RANDOM.ORG - Password Generator
I keep track of where every password is used. When password managers fail, then I don't have to scramble hard. And all password managers seem to fail often enough.