So, I never had a chance to just hold my thumb on the home button and go my way.
1. open the App store but don't click on anything 2. hit home button 3. launch keepass client 4. navigate to apple account entry 5. copy password 6. double tap home button to bring up multitasking menu 7. tap app store 8. click install 9. paste password
It feels really stupid doing it, but you can get pretty quick at it. I can't wait for my next iPhone upgrade with touchid.
If you can manage to memorize one, you can memorize two.
I use 1P on my laptop most of the time so it's not a huge deal. Everything else on the iPhone just remembers credentials.
I know I can force myself to use a great password for iCloud but my point is that most of the time, I'd go for an idiot password rather than forcing myself. Just like most people.
for example, pass2'word would only require you to hit the alt-keyboard switch once.