Toho Shoji is a store worth visiting when you have a bit of time. I won't say it's cheap, but they have just about everything you need if you're an avid beader or craft person. The have a large selection of Swarovski crystals in the back of the store. Throughout the store they have a great selection of findings - magnetic clasps, decorative clasps, small beads, lots of colors, earing findings. They also have pliers and tools and glue that are an absolute essential if you want to make jewelry.
Staff is fairly helpful and seem knowledgeable about their inventory.