Re: Advice from Aunty, regarding HTTP websites
The simplest way to make a hard to guess password that is memorable is to use a film quote or song lyric etc.
Using "Frankly, my dear. I don't give a damn." from Gone With the Wind, which was released in 1939, you get something like:
If you aren't geeky about songs or films, pick something you have a wide field of knowledge about, it makes it easier.