Cheap Japanese stuff! This is a huge store in Puente Hills Mall with all the great Japanese things you could ever want, cheap. They have bags, tons of stationery, cell-phone straps, home decor, character goods, pens, and more, all very reasonably priced. It's basically a 99-cent store, but the product quality has its American counterparts beat. It's especially great considering how expensive Japanese products tend to be normally.
It's a spacious store; usually there aren't a ton of people running around, but they seem to do pretty good business, and they have nice shopping bags. Definitely worth checking out.