We mostly buy them from migrant workers who collect thrown away furniture on their cart on the street (a lot of old houses are being destroyed in Shanghai to make place for new high-rise buildings). Since I was also in the process of renovating my new apartment, I was looking for a nice cabinet that could go in my sons' bathroom. This one had the perfect dimensions, a door and three drawers, but was in pretty bad shape. The structure was still very solid though, just needed a big clean-up and dressing-up.
After a thorough clean-up, it was just a paint job, with a bit of color to add to the black and white color scheme of the bathroom. I painted little red stars around the knobs to match the tiles. The whole interior is painted the same red and I left the wood bare around the drawers. Then we had a black acrylic counter top made, [placed] the sink on top, and voila! I have my own unique bathroom cabinet.