As an ex realtor and someone who used to flip houses, pay attention to details. Anything that is left unfinished, finish it. It all depends on how the house shows. Staging is a very good method. Leave no clutter in closets or living space. People like to see open rooms. Also, there could be arguments between selling an empty house versus a furnished home. There are good and bad sides to both. Since you said you will be listing an empty house you are already on the right track, neutral colors help as very rarely will you find someone that has the same tastes in paint color, carpet, tile, etc. You cant go wrong with anything you do as far as updating in kitchens and bathrooms, unless you over spend to start with. If the house sits on the market for an extended period of time, put out a feed back sheet. I have also found that people who really like the house will come back and view it again. The more time any prospective buyer spends in the house the better. Be prepared for two main obstacles, heat and air, and roof. If these are old and need replacement it could be used as a bargaining tool. It also helps to have curb appeal. Look at the house and ask yourself what could spruce up the front? Maybe some color in the flower bed? Any peeling paint, anything that could turn off a buyer?
Good luck with the sale.
Good luck with the sale.