Not many So California folks on here.
I had a nice little business in Simi Valley / Thousand Oaks area in the late 1980s early 1990s. However advertising has changed since then.
I will say putting flyers on peoples doors alaways worked for me out there. Plus the houses are real close togeather so you can cover a lot of homes quickly. Here in Bama flyers have been a complete dude.
One thing I did do when I advertised out there is put in all adds and flyers "American Owned, Owner Operated" it mad a huge difference.