Make your password 8 characters or more
Use mixed case letters (upper and lower case)
Use more than one number
Use special characters (!,@,#,$,%,^,&,*,?,_,~)

This is a handy little script that generates a random password. Test it out. This is one of my personal favorite scripts because it is important to have a reasonably secure password. For more information, read my article about why it is important, and how to have a secure password.