We don't need to do any bookkeeping other than watch what we spend. If we need to make a larger purchase for something, which we did last month for a replacement part for my hubby's hearing aid, I wait a couple days until it's posted to the CC and then I go in and pay it. Everything else, like groceries, gas, and Home Depot is also paid ASAP. I don't even wait until the due date. We have our Netflix and Dish set up automatically every month. We have a car payment but it would cost an extra $5.95 a month for them to take that out of a CC, so it is taken out of our bank account.
It's really quite simple. The only thing we don't use the CC for is Amazon because I use their card and get 5% back which I use for other purchases. I don't need to go in on either CC to activate the cashbacks for that quarter. I used to use a Discover but hated that about that card. I always forgot to do it or we wouldn't use what that quarter was offering.
I keep a notebook (I have for years) of regular expenses for each month and when I have an additional purchase, like groceries or the dollar store, drug store, etc., I write that in my book and keep the receipt until I see it posted and then I pay it. Works for me...but then again, I'm a "numbers" person and I love doing it.
The extra cash is worth 5 minutes of my time