Start outside, where the first impression is made
Walk to the street and look at the house the way a buyer arriving for a showing does. The driveway should be swept, cracks filled, oil stains lifted; the walk and steps clear; the front door painted or at least cleaned, with hardware that works; the house number visible. Trim shrubs below the windowsills, edge the beds, mulch, cut the lawn short and water it. Clean the windows, the siding and the garage door, and replace burned-out exterior bulbs. Eavestroughs and downspouts should be clear and directed away from the foundation, because Whitby buyers and their inspectors are alert to basement moisture in a town built along creeks. In the back, repair fences and gates, power-wash the deck, put away toys and tools, and if there is a pool, have it clean, open and running for photographs and showings. Winter sellers clear snow and ice before every appointment and salt the steps. For rural properties, mow the fields near the house, tidy outbuildings and make the well head and septic access visible.