Don't buy the first house you see.
If you like the first house you see, don't be tempted to make an offer right away. You should look at least a few other houses first so you can get an idea of the homes that are available in your price range.

Price your home realistically.
Sales statistics show that properties that are initially priced too high eventually sell for less than properties that were correctly priced in the first place. Also, over-priced houses can take months or even years to sell, while properly priced houses usually sell in a matter of weeks or even days. When selecting your agent, make sure that each Realtor you interview presents a CMA (or Comparative Market Analysis) that shows what he or she thinks your house is worth. The average or median price will likely be very close to your home's true market value.

Show your home in the best light possible.
While you don't have to keep your house 100% clean all the time, you should make any necessary repairs and perform all major cleanup work BEFORE you start showing your home. There are hundreds of small things you can do to make your house more attractive for a showing, ranging from drawing all the blinds and tightening loose doorknobs to displaying fresh-cut flowers and baking a loaf of bread. Most importantly, you should not be present during showings so that prospective buyers can explore your home freely. Ask your Realtor to provide a checklist of things you can do to make your home more attractive to buyers.