To prevent water pipes from freezing over during the winter, shut off all interior valves which supply outdoor pipes.
 

Change furnace filters monthly.
 

If any damage has been made to interior walls, repair/repaint as necessary. 
 

Make sure your grout and tile is in good standing, and repair/re-grout as necessary.
 

Add copper sulfate to basement floor drain and to any downspout drains in order to control tree roots in main sewer.
 

As the weather begins to warm, re-open the interior valves supplying outdoor water pipes.