In order of importance, here are my suggestions: Declutter, Clean, Repair broken items, Paint and modernize lights. Storing excess items (decluttering) is the cheapest way to add value to your home, followed by giving it a good cleaning. Next, make sure that any damaged items are repairs, down to small things like broken light switches, burned out light bulbs, etc. Next, give the home a good paint job, but here quality of workmanship matters. Hire a painter, it's actually cheaper than you might think, because good painters also have access to lower paint prices, so part of their labour is recouped in lower paint costs. Lastly, ditch those old lights and upgrade to new, modern LED lights to add some brightness to the home. Finally, choose a good reputable real estate agent to help you with the sale..