Paint
when it comes to preparing a house, painting gives you the best return for money spent.
Flooring
at the very least, all carpeting needs to be steam cleaned. Any worn, stained or foul smelling carpet should be replaced. Any flooring that is cracked or damaged, should be replaced, if possible.
Clutter
If something is not necessary for your day-to-day life, box it up and store it or throw it out!
Closets
Closets need to be neat, clean, and organized.
Cleaning
the cleaner, the better. Dusting, washing, waxing, polishing everything will always make a good impression.
Lights
clean the fixtures and make sure the bulbs work.
Windows
replace any cracked windows.