GIFT FOR HOSTESS, GIFT FOR YOU: For awhile it was socks. We got a lot of hostess-type-gift socks. Then, retro candy. We still welcome both, but the cocktail napkin also seems a fine walk-in-the-door choice. These pretties from Trina Turk are named after a certain resort city to our east, and they do, in style and hue, seem to summon that city. Cocktails in Cathedral City? Some wine on Palm Canyon? THEY'RE EMBROIDERED, TOO: Four for $22; colors are turquoise, orange, black, and green.