From what I've found after posting this, neither place lets you stack. You could at first with Kroger ecoupons, but I'm new to the mPerks. If there is a paper coupon for the same thing as an ecoupon, you're better off using the paper coupon because both double it - Meijer doubles coupons up to $.99 so you could get almost $2.00 off with the right coupons - but they don't double the ecoupons. However, the Kroger ecoupons allow you to use it 5 times in the same shopping trip.
Prices are terrible and they are going up so quickly. I feel sick every time I go to the grocery store. Coupons only help take the sting out of it a little. I was never able to master the coupon thing, let alone the extreme couponing, but I do try to match coupons with sales and search for coupons for pricier items that I'm going to need. I got far better deals at Meijer without coupons than I would have at Kroger with coupons. For example, I had a $.60 ecoupon for Purex 72 oz laundry detergent (difficult child has very sensitive skin and we don't change detergent) at Kroger, but Kroger's sale price for that item was $5.29 while it was on sale at Meijer for $2.99. I only shop at Kroger for very specific items and only if I also have coupons for them. Their cereal tends to be cheaper than Meijer and difficult child is the cereal queen. They had an ecoupon for $2.40 off the cat food I use. Things like that. They had what looked like some good ecoupons, but when I compared them to Meijer sale prices without coupons, Meijer was still a far better deal on almost everything. I don't have any space at all to stock up on things, so I'm just trying to get the best deals I can each week and go from there.