The second-hand bookstore rounds:

• Book Sale Cubao
• Book Sale SM North EDSA
• Books & Mags Trinoma
• Books for Less Centris
• Books for Less Shopwise Commonwealth
• That tiangge behind Palma Hall in UP
• That tiangge next to the UP Shopping Center
• Those tiangges that pop up near the UP Church every Christmas time

--because I almost never buy brand new books anymore.