I know that you liked Jeanette's answer best, probably because it makes you feel like you have control over getting more showings, right?
Well, all of these answers are good ones, but as I've advised before in other Q&A - your sales problem is about the balance between price, terms and time.
Close to 90% of the time, a lockbox showing from a Buyer's agent with a pre-qualified buyer is going to be the cause of a sold listing. They are attracted because of price and terms (condition is part of terms...).
You can get creative with the 10% OF THE MARKET who might buy your property because they found it on Craig's List or Postlets or because one of your neighbors called a friend, or because an "unrepresented buyer" drove by and picked up a flyer...however, it's the 90% that will get you the best chance of obtaining the fast the result that you seek.
So, my favorite listing in Summerhill was overpriced by another agent by over $50,000 for 11 months on the market. I showed the seller the real numbers in Summerhill, and I required her to spend nearly $8,000 on the property in landscaping, interior clean up and a new sidewalk, before we put the sign in the yard. My Terry Street listing sold in 40 days.
Michael Lewis from Atlanta Intown represented the buyer and his client promptly painted the house a cool pink. It's my favorite house over there now.
SJP Properties is not getting very good service from their real estate agent.