It seems to me that when roaming around jianghu, wulin people, esp. the main characters, do not care much about their personal hygiene, yet strangely their bodies and clothes are always sweet-scented and splendid. for example, Guo Jing and Huang Rong cross-leggedly sit face-to-face for 1 week without going to WC, cleaning their teeth and faces, etc. nevertheless, IIRC, JY wrote that her face looked like a peach blossom and her breath was as fragrant as a certain freaking kind of flower whose name I can't recall ; Xiaolongnu lived in a cave for like 20 years in a time when washing-powder was yet to be invented even so the color of her clothes is described to be as white as snow ; etc. How did they do that?