I've had the CVS Carepass since it came out. It costs me like $48/year (I pay upfront but you can do monthly payments) and they send me $10 in Extrabucks each month and free shipping. When you stack manufacturer coupons with their coupons in the app and the $10 Extrabucks, things like formula were a good buy. For diapers, I usually found them to price out to be less that I used to pay at Target for DD and they often had more Extrabucks promos on top of that. I've bought all of DS's diapers and now pull-ups pretty much only at CVS. I mostly stopped going into the stores once he was done with formula and usually just buy diapers online. I still do sometimes go in if I have time because they will mail you some big in-store only coupons like 30% off your whole order. Those were definitely good for our formula days.
I just wanted to share it on here as an MMM thing to do. We don't talk as much about formula and diapers deals on here anymore, but hopefully someone can benefit. Once DS is fully potty trained, I plan to continue buying diapers to donate as we don't buy too much else at CVS on a monthly basis. I get my fix of couponing and finding deals from the convenience of their website and feel good about donating diapers for babies & toddler. MMM win all around!