Maybe this just belongs in the power-up part of the game. But I saw the word inventory and got thinking...A lot of games let you collect items to improve your avatar/character. It could be a sword or a healing potion. For superbetter, what items could help along a quest? Maybe a new pair of walking shoes or a funny t-shirt to wear that encourages you to get outside. I guess we can just list them as power-ups but an inventory sounds interesting to me too.

Second idea. My dog has always been my ally to get me outside walking but he doesn't have an email address. Could we just add a pet as an ally without an email and then 'check-in' with them when they get us to move towards our goal? I could also list him as a power up but he's more than that.