Does the coupons really work?

[ofabiofernandes]

I am new in this coupon world and i've been seen in the internet lots of site offering things that i would never imagined. 
How is your experience about them?
What should i consider before trying to use one?
 

tks

[jesusluvu]

Coupons are great. Just print it and take it to the store, If they take it great, if not and you don't want the product then tell them to put it back. I have used them for years and love it.