I was in line behind someone fumbling around trying to get the app set up and logged in, and I was going to say that in spite of having set it up myself, it rar

I was in line behind someone fumbling around trying to get the app set up and logged in, and I was going to say that in spite of having set it up myself, it rarely saved me more than a couple of percent on my total. I didn't, and due to some combination of stacking discounts I saved ~15% that day. But it's been 2-3% ever since...