This was bound to happen. As the cart-food obsession rages on in Portland, other businesses are copping to it. This city already has a handful of clothing stores on wheels, and as of this Valentine's Day, we'll have a hair salon in a cart, too. Robin Carlisle's Holiday Hair Studio is parked on SE 28th, between Ash and Pine, and promises "pink damask wallpaper and a vintage vanity surrounded by a halo of bulb lights... fresh Parisian Macarons baking right on board in its miniature oven... [and a] refurbished 1929 seltzer bottle used to serve clients pomegranate spritzers." Sounds kind of great, doesn't it?