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：在網上購物時，嘗試使用基本的促銷代碼，如 "FALL21""BLACKFRIDAY2021 "或 "20OFF"，以獲得驚喜的優惠券，特別是在假期即將來臨之際。