My2loves yes it helps out a great deal
I will be doing this as well . . .
And they now send me coupons in the mail twice a month. Good ones like $8 off any size can of Formula. I'm breastfeeding, but I keep them just in case.
Similac.com and emfamil. I signed up and in a couple weeks similac sent me 2 medium size cans of Formula and 4 ready made bottles and enfamil sent me 8 formula packets and two big cans of powder.