For the most part I feel like I have my spending pretty optimized and my credit card usage dialed down for maximum cash back.
What I currently use:
Chase Freedom/Discover It: rotating 5% categories, often the same categories but not always.
Barclays Uber: 4% restaurants, free phone insurance.
Chase Amazon: 5% Amazon/WF.
Citi Double Cash: 2% everywhere.
I was going to sign up for the AmEx blue cash preferred for the 6% on groceries until I saw that it has a $95/yr fee. Given that I can get groceries now at 2% with the citi, the delta between the two is 4% and the break even point is $198/mo in grocery spending. However, usually at least one quarter of the rotating 5% categories for the chase freedom and/or discover it is groceries, so for one quarter the delta is only 1%. This brings the average break even point to $244/mo in groceries.
This is above what many of us aim for in grocery spending (myself included). What am I missing here? Did I flub the math? Are folks finding a way to avoid the $95 fee? Or is the AmEx blue cash preferred not all it's cracked up to be?