You must be kidding, right? A good password is the one you can easily remember but others can't easily figure out.
If you can't remember your passwords, you will always depend on a third part to access your data and I don't think it's really secure.
I did say that the weakest passwords are the ones that can be easily remembered. You should generally come up with something that you have to train your brain to remember to avoid it being easily crackable.