If you're anything like me you will have dozens of passwords and userids for different directories, sites, accounts etc. How do you keep track of them all?
One simple way is to create a Word document or Notepad file and list all the sites, userids, passwords and associated email address.
Of course you DON'T list the full password! List it in coded form, so that only you actually know what the full password is.
Password protect the file itself for reading, editing and saving.
It's always good to use a variety of passwords for different types of sites, never use one password for everything. A mix of letters and numbers are best.
Don't use your year of birth, house number or other obvious dates/numbers. Also don't use easy to guess passwords - like names of children, pets, partner etc.
Make sure that you have a copy of your password document/file somewhere safe. When my hard drive crashed - my own password document was invaluable in getting back online to all the sites I use as all the cookies to sites I regularly use were also gone.