Extreme couponing!


Anyone have any experience doing this? I wanna start couponing and shopping on what’s on sale, i do a little but not too much. How do i do this? I seen a girl on my timeline posting all the things she got that was worth 100$ and she only paid 10$. Everyone asked how she did it and she kept commenting to everyone it’s really hard and confusing.. so lol was wondering where i could get these extra coupons and how to use it all to my benefit! :)