Anyone located in Seoul, Suwon, Gyongju or anywhere else will are required to get an ARC card anyway, and might as well wait and fasten a Korean cell phone with it so you pay your bills in won, not greenbacks.
Hair can clean up oil splatters. The innovator, Phil McCrory once collected hair clippings from salons and stuffed from a pair of hose and used because an oil mob and it worked in fact. He