SIGUS led sessions to help individuals and groups brainstorm housing innovations for the MIT $1K Enterprise Competition. Focus was on the Katrina/Rita areas, and in other devastated countries. It has been noted that many technically elegant, environmentally sound, affordable innovations in housing have been proposed over the last 30 years, but few - if any - are mainstreamed and have real impact. Something is missing. The MIT $1K competition offered the opportunity to explore a market-oriented approach, linking a clear immediate need with bold innovations.