Late last October there was a post about a garter snake which appeared on the winter jasmine at the front door. You can see that here:
Yesterday, when I opened the door to get the mail, I spotted what seems to be the same snake sunning itself at the front door. I carefully closed the door and went for my camera. When I got back and opened the door again, the snake slowly started to move. The picture above isn't great, but I'll bet it's the same snake: "our" garter snake.