Do a thorough walk through inside and outside. Make a list of little things that you can do to best show the property. De-clutter! A lot of people have a hard time visualizing so clear out the excess, take the photos and notes off of the fridge, power wash the patio - minimalize! If you have a few odd jobs needing to be done, (like fixing that creaky step on the deck, taking the greenwaste pile out of the backyard, or tightening a gutter) hire a handyman! First impressions are key and any effort you put in beforehand will benefit you later on with the sale. 

The first two weeks of a new listing are crucial. Make sure you are available for questions and offers. 

Double check that you've notified any tenants and have their consent in writing for showing their unit and that you've talked about both of your expectations. 

Do you have pets? Have a plan for your pets to get out of the house during showings to reduce their stress. 

You may even want to have a current building inspection available for potential buyers to know the details of your home before they offer.