I use a razor that takes with a double-edge blade to shave, as I find cartridge razors to be expensive, irritating and easy to clog, and I am too lazy to take care of a straight razor properly! I recently went to China, and discovered that I didn't pack a box of spare blades:
Thinking that these would be easy to find, I went out to the supermarket and tried to find some. However, all I could find in any supermarket or pharmacy (e.g. Watson's) were racks of the Gillette multi-blade razors. Asking for the flat blades was just met with a blank look and a wave towards the cartridge razors. I eventually bought one of them since I needed to shave and had the subsequent unsatisfying shave and rash.
Where can you get double-edge flat razor blades in China? Have Gillette moved in and made it an online-only thing now? Decent ones would be a plus, rather than some off-brand ones of dubious sharpness!