I OC everywhere I go in this state that is legal except for the college where I have chosen to carry an empty holster in protest of their policies....while working on getting their policy changed.
Other than school, if I can't OC, I don't go. We no longer shop at CostCo or the local mall. Those are the only two places that my wife and I avoid due to OC. The mall because they stopped me AT the door as I was reaching for the handle and said "no guns" to which I handed the guard a "no guns no money" card and asked that he make sure the mall management gets it. FUNNY....they sell guns there, a friend bought one and he had to go outside the mall and around to their rear entrance where they met him and handed him his rifle. CostCo policy is no guns whether they enforce it or not in a particular store so I don't give them my money.
When I go to Calif I carry my holster on my side andthe weapon, slide locked to the rear and loaded magazine in a locked gun case in the front of the vehicle. When I get to moms or my sisters it comes out, gets loaded, and put in the holster once I'm on their property.