(5)  ENHANCE THE EXTERIOR – cost range is $150 – $7,500 and potential return is about 2 to 5%.  Start with basics:  mow the lawn, trim overgrown shrubs, apply a fresh layer of mulch to garden beds + plus add something that is seasonal blooming in the shrub beds.  Or do potted blooming plants at front door.  A fresh painted front door always inviteS inside.  Also if you have a deck clean it and coat with a good semi-transparent weatherproof wood stain.  Same for any siding.  The roof is important and must not show excessive wear or REPLACE.  Has their been hail damage in your area recently?  Check with your insurance.  Hairline cracks in the foundation wall are usually harmless, but wider than 3/16 of an inch can be a problem.  May need to pay a structural engineer to look at this and write a report.  Just be AHEAD of a buyer to GET A BETTER PRICE FOR YOUR HOME.