-Find a famous mathematician whose name is orderly.
-Now find a complexity theorist.
-How long an orderly word can you find?
-Have any other challenges for the rest of us? A CS research problem related to orderliness?
In a different but still-wordy vein, Free Rice is a fun site, where you donate rice to the UN by testing your vocabulary. The words get impressively obscure as you score more correct (multiple-choice) guesses, much more so than, e.g. the also-recommended Word of the Day page, and once you're arguing with friends about what 'carronade' means it's a good bet that you're not fighting poverty in the most effective way possible, but I still recommend it. What this quiz underscores for me is how much verbal knowledge we hold at the very edge of awareness and competence. (Hat tip to Chaya for the link.)