A simple way to create strong, unique and unforgettable passwords

As we know, simple passwords are easy to hack, but strong passwords are easy to forget.
Here is a way to create strong and unforgettable ones by simple template.
For example, we need to create password for www.givemestrongpassword.com.
Assume that your nickname in school was "cool Joe" (you will never forget it) and your date of birth is 08/25/1980.
Let's compose your password:

1. First part - "08" (month).
2. Second part - "Givemestrongpassword" (you will never forget this part too, because it is a site address, uppercase letter is needed because of the requirements of many sites).
3. Third part - "&" (special symbol, see p.2).
4. Fourth part - "25" (day).
5. Fifth part - "cooljoe".
6. Sixth part - "1980" (year).
   ...and entirely: "08Givemestrongpassword&25cooljoe1980".
   You may variate yor own template and/or add other parts that you always keep in mind.
   Good luck !