I'll play!

I have never heard of a tree lawn. (born and raised in Southern California, now live in the Bay Area (not technically Northern California, at least if you ask those folks in Redding.))

I call soda soda, but usually I refer to it by brand name; eg, if I want a Coca-Cola, I'll ask for a Coke. Brand names are NOT interchangeable. If I feel the beverage is, I'll ask for the type of soda; eg a lemon-lime soda. Not that I would ever ask for one of those foul things.

On the West thing, I've noticed it most in country songs, where they talk about going "out west" incessantly. They seem to consider Texas out west, because let me tell you, San Francisco has no "wide open spaces." (yes, I'll admit it, I have grown to like the Dixie Chicks, although I can't stand most other country music, except the real stuff.)

I am the Doctor, and THIS... is my SPOON!