I was contacted last year by a husband and wife in Mission Viejo who had a front and back yard that they wanted to renovate. They had done the landscape 30 years ago when they bought the house and what they had was perfect for their growing family. But now the kids have fled the nest and they wanted something a bit more adult suited. What we did was overhaul 90% of the garden.
In the front yard we redid the drive way with concrete and a flagstone banding. We repeated that same flagstone (called butternut from resource building materials) as the main path to the front door. Some of the grass in the front was kept (yes they still wanted to keep a bit of grass) and added California native plants in the other planting areas.
In the back yard we replaced what was a small broken concrete pad with the same flagstone that we used in the front yard. We made it into a half circle shape to add interest. We also added a gravel path that leads to the shed. Some existing trees and shrubs were kept but a descent amount of California native plants were added.
In both the front and the back we used bark mulch and re-used some concrete things as the edging between the hardscape and the softscape. The last remaining item is to furnish the back with nice table and chairs but for now we are going to hold off until winter when they have had a chance to financially breath. You can see images of this project here.