V.M.
There are some out there, you can write the company that makes them and ask to be sent some. There are tons of yogurt coupons in the newspaper inserts.
Some grocery stores have a system where if you buy certain items or a certain amount you get a ticket/certificate/ catalina/ coupn what ever you want to call it for so much off your next purchase. So say your store is running a deal on cough and cold stuff and you buy all that plus you have coupons so you get it cheap, THEN they give you a print out at the registar for say $10 off your next visit, Then y ou go back and buy meat and cheese and milk, the $10 worth of meat and cheese is then "free" because of what you already purchased.
find a couponing blog for a store you like to shop at , they will explain every detail.
I have found CVS is a great store to learn couponing,
and I have said it on this website a ZILLLION times, unless you are wiping with Tree Bark, Toilet paper and toothpaste and all the great things that drug stores sell count as groceries and if you can get them for free you will have more money for your milk.