Instantly Apply Every Promo Code at Checkout with Honey Have you ever made it to the online checkout and you see the little box that says "PROMO CODE". Of course you know someone else is using a code and saving money, so you start searching the internet for every promo code and apply them 1 by 1. 20 mins later you found a coupon that saves you $0.50. The free Honey Coupon browser extension will now do all the for you in seconds - making sure you always get the best promo code applied quickly before you buy.