I've been reading (or rather, seeing) Habit since earlier this year, which I stumbled across while reading Swallowfield, or maybe it was the Eyeblog, I honestly can't remember which anymore.
So the whole idea behind habit is photograph bits and pieces of their daily lives in order to celebrate their daily lives, and ultimately make a habit out of such an activity.
Each month, Molly and Emily post their own photos, as well as hosting various extended guests.
Along with each photo is a sentiment about the day, perhaps a description or meditation.
Each photographer's mutual moments of chaos and peace are an excellent way to document the passage of time.