Learned a lot living at people's places: you could plan a month of no accomodation and couch surf, don't think that's such a stretch. More fundamentally, the tent piece was just a "social opener" to learn more about others. Many other things can be this social opener.
Material freedom: I buy that the experiment showed you that and that's awesome, but I also think some solid therapy around one's understanding of material reality could play a similar role.
