Until your home requires more square footage, one never can own too many books or videos. So buy some more from among more than 600,000 items available at the 34th annual Friends of the Metropolitan Library System Booksale! It’s open from 9 a.m. to 5:30 p.m. Saturday and Sunday at State Fair Park’s Oklahoma Expo Hall, 3001 General Pershing. Admission is free. Visit mlsfriends.org.