Started the 23 things, finally. DeskNow is up today, so lots of questions.
Easiest would be either Use Technology or Play.
Hardest would be Begin with the end in mind.
This is difficult for me because I am a "step-by-step" thinker. I can see a very basic end, (ie: I want to build a computer) but then I have to go step by step to get there, and I think in that frame.