I had used honey in the past on another computer, but when I got a new computer I forgot to add it. I recently saw it mentioned and added it to Firefox.
I forget I have it. Even so it AUTOMATICALLY will search out and apply the best price, if possible. Otherwise it will tell me who has the best price!
This is an INCREDIBLY useful tool for anyone with more brains than money. If you don't care to get the best price available at that time, don't bother. Otherwise, DO IT!
UPDATE: I feel I have to downgrade this by a star because, over time, today is the FIRST time it has saved me money.
At Kohl's, on a $20 purchase, it saved me $3.88. Can't complain about free money ~ it's just the 30 or so second you have to wait for Honey to "look around" and find coupons. Guess I'll keep waiting; why not?