S.M.
1) The first set of Enfamil Lipil coupons we got were part of the formula bags that the hospital gave us when we brought back the twins home
2) You can sign up on Enfamil website and they will send you coupons periodically as well
3) We had created a registry on Babysrus and they send us coupon booklets. It contains all kinds of coupons
4) These days, Babysrus have a sale going on where the formula is selling at a substantial discount e.g. we bought a case of Enfamil Lipil Ready to use 1 qt can for $33. This is sold for $38.xx at other stores like Walmart/Target etc.
Hope this helps.