I'll continue to add to this as I think of new places but this has to be one of the most common questions I get asked.
  1. Austin public library: note they will only hold certain types of meetings
  2. City park such as ZIlker Clubhouse
  3. Neighborhood community center
  4. Restaurants that have low volume business during certain times; they will always entertain renting out their space for a fee. One thing to keep in mind is ask them if they will kitchen staff on site because if it's an open kitchen, it can get noisy
  5. If you use one of the big law firms in town or backed by a VC, they usually have large conference rooms that you may be able to secure for a single day use. Make your services dollars stretch for you in a non-traditional way.