Some house-shares entail just a little too much "sharing" for my taste:

Seattle Craigslist Rooms & Shares: $520+ Includes Rent, Util, and Food: Co-Op on Captol Hill

One room available ... in a beautiful 1908 mansion with 15 bedrooms, lots of common space ... Our dues are: A base amount of $375.00 + $140.00 for food + a 'tax' (which is a form of income sharing) of 7% of income minus base dues, food, healthcare premiums and retirement deposits. Dues pay for just about all of your needs: vegetarian food, utilities, household supplies (including cleaning supplies and most basic personal needs), internet, phone, and subscriptions ...