We are a family of 2 adults and 5 kids. I've never done the coupon thing because its seems like brands we don't eat. Do you just switch brands when the coupons come out?
Don't bother w/ the coupon.
I use store brands A LOT. Very little brand loyalty here. I almost only use a coupon when I catch the item on sale & it is an item/brand we use regularly (Crest sensitive toothpaste, Prilosec, Charmin--DH's vice

I am thinking of the coupons I used today...we needed yogurt & Yoplait 4 packs were cheaper than the store brand...had a coupon.That's how I typically use them. Alternately, had a coupon for ziploc bags, found store brand on sale much cheaper, went w/ those.
I use a lot of Target only coupons.
I shop mostly at Hyvee grocery, SuperTarget & Walgreens. I love Hyvee's produce, store brands & they have a few items we use that SuperTarget doesn't carry. Walgreens is 2 blocks from our house & we can pick up milk/bread/beer--I think that saves us $ not to stop at the grocery store each time...too easy to pick up other stuff.