After an expansion in 2007 that doubled its (tiny) size, Red Hill Books looks poised to hold down the corner of Cortland and Bennington forever. At least, Bernal Heights residents hope so. The bookstore's smart mix of new and used fiction, children's lit, best-sellers, how-to books, arcane ephemera, and magazines have made it a much beloved neighborhood gathering place. This is where you'll find that used Joan Didion you've been meaning to read, along with a surprise copy of whatever young adult novel you fetishized at 13. Live bands play at readings, and sometimes there's food. A children's story hour on Friday at 10 a.m. draws lots of little critters. And yes, the squishy couch is still there.