In this Tuesday, Oct. 20, 2015 photo, Shane Lentz, of Pittsburgh, Pa., and his wife Hilary, talk before leaving a tiny house, which they rented for a weekend, in Croydon, N.H. As the tiny house phenomenon sweeps the nation, Harvard’s Millennial Housing Lab thinks a tryout is in order for people toying with radically downsizing their lives. Its new “Getaway” project gives the curious an opportunity to spend a night or two in one of three tiny houses and get a real feel for the lifestyle before taking the plunge. (AP Photo/Charles Krupa)