YSK: When shopping online, try using basic promo codes such as "FALL21" "BLACKFRIDAY2021" or "20OFF" for surprise coupons, especially with the holidays coming up.
from /r/YouShouldKnow
YSK：在网上购物时，尝试使用基本的促销代码，如 "FALL21""BLACKFRIDAY2021 "或 "20OFF"，以获得惊喜的优惠券，特别是在假期即将来临之际。