When it comes to real estate, it's more than just location, location, location. Home buyers are getting more specific, saying the thing that matters most is cutting down on their commute. That finding comes from a national survey conducted by the National Association of Realtors and a development watchdog group called Smart Growth America. The poll found that nearly 80 percent of the people who were surveyed want to shorten their commutes -- saying their top priority is living within 45 minutes of work. Those surveyed also say they're looking for areas with more sidewalks, and where stores are within walking distance. The groups behind the poll say the survey has serious implications for public policy. Respondents wanted much more investment in public transportation and aren't as concerned about building new highways.