Another tip: don't use the name of your sweetie. A while ago -- late 1990s, I think -- a security firm in Japan found they could crack about 25% of the accounts of Japanese businessmen by trying the 10 most common Japanese women's names as passwords. These guys were using their wife, girlfriend, daughter, or favorite idol singer as their password. I suspect American men aren't any different.

No matter how much you love her, or how easy her name is to remember, don't use it as a password!