it would be cool to be able to note when you mark a powerup as complete HOW you completed it. On the completion record rather than the activity wall, so you can look back on what you've been doing and what's been working for you. Eg the Power-Up "Engage in a Hobby" (or whatever it is, something similar" you could note "Played guitar for 10 minutes" when you tick it off, then in your history you can see that.