I use Chinese pinyin phrases, then substitute some numbers for good measure. Example: The phrase: "How are you" is 你好吗？ Romanized, that becomes ni3 hao3 ma3.

I use Chinese pinyin phrases, then substitute some numbers for good measure. Example: The phrase: "How are you" is 你好吗？ Romanized, that becomes ni3 hao3 ma3. So a password might be ni3hao3ma3 or n13h403M43.