Assign a Challenge of the Day for Groups (besides WoD)
Just like the idea with the Workout of the Day, I think it would be awesome to be able to assign a Challenge of the Day like:
"Today let's see who can avoid eating sweets"
"Today let's see who can hit 10k steps"
"Today let's see who can eat sufficient protein".
I think this would be really useful in helping people with the Habits part while using the peer pressure of the group (in a positive way).
Waiting to see some feedback from other people regarding this idea.