When considering the sale of your home, there are three things that you control:
Preparation refers to the work that you do on your home, prior to the actual listing of your home for sale. At a minimum, all of the "deferred maintenance" needs to be done. If you're not sure whether or not to work on something in preparation for selling, ask your Realtor.
Presentation refers to how your home looks to buyers during a showing (or open house). There are many things you can do to make your home more attractive during a showing - too many to go into here.
Price is a reflection of the two previous “P”s, relative to market forces.
As long as you are consistent between these three factors, you have a better chance of selling. Note that I didn't say that you would sell (for sure) - only that you have a better chance of selling. See my previous post, about Greg and Katie's recent experience in selling, to gain a better understanding of what that "better chance" really means in our present market.