How to make good password

password should contain a minimum of 8 characters (the longer the better),
password should contain characters selected from the largest collection (numbers, lowercase letters, uppercase letters, special characters, etc.),
password should not be based directly on real word or a combination of popular characters (eg qwerty),
password should not be based directly on data known to other persons (birth dates, names, car registration number, etc.),
do not save your password in the form of an open (unencrypted)
do not send passwords over the internet (eg via email) in the form of an open (unencrypted),
do not use the same password for many different services / operations,
should not be given a password when using an untrusted computer,
before entering the password, check the address and page protection (especially banking).

KeePass Password Safe - a very good program to create and secure storage of passwords.