First, you got to forget that this is your home and start looking at it as a professional stager or a decorator would.
The stager makes the house look more spacious, showcasing the focal points/views, making the energy flow easily (unobstructively - Feng Shui), yet, too much of color popping could actually destruct from the selling points of the house.
A stager will de-personalize the space (removing all personal pictures etc. which make a buyer feel like an intruder), and de-clutter (as mentioned by Mary) - the goal is make rooms look SPACIOUS.
Put some tasteful decorative items on display - 3 to 5 pillow on a couch, a nice contrasting color throw...making the place looking "homey"...or go further - engage all senses (music, nice aromas)...
There are helpful tips on staging/decorating before selling at: http://www.hgtv.com/real-estate/30-cant-miss-staging-tips/in
As a realtor, I feel that fixing everything that's broken in the house will be a must before selling.
Pretend you are an inspector and fix it all (it is cheaper and will eliminate price reduction after the inspection). No dark colored walls please (they make the rooms look smaller)...
Make your color windows shine, pull out curtains for showings, have hotel style towels and fresh soaps in the bathrooms. Less is more there. And - curb appeal - a bright welcome mat at the front door, mulch where needed, potted pants in nice planters...your house should look like a celebration is about to start here...
Because each house has it's own "soul" - call in a good realtor with the staging experience to help you out.
Beachfront Realty, Inc.