F.B.
There are a number of websites which will handhold you through it, I sometimes look at moneysaving mom and at passionatepennypincher.
They will go through that week's store circular, tell you what coupons to use, where to source them, and even offer you ideas on how to structure transactions to get the "best value".
We have limited space, limited time, and our local stores don't double coupons. What we do is track prices on our usual purchases, and load up when they are at their lowest. Also, we keep our menu flexible so that if I was thinking stuffed peppers, but zucchini is on discount, it will be stuffed zucchini instead.
good luck to you and yours,
F. B.