Saunas are great, but 9 times out 10 they involve sitting three feet away from an old dude’s bare sack. Is ridding yourself of this problem worth $41,000? Of course it is. The Sauna Box is a self-sufficient sauna that uses both solar power and a wood-fired stove. The whole unit is built into its shipping container, and it features hook-ups for your electronics. Yes, more hook-ups for your gear, less hook-ups for No-Pants Stanley over there.