Answer: Well, it is a combination of advertised specials, coupons, and stock piling.
So here are a few examples, using some of my actual saving. The Nabisco wheat thins and Triscuts are normally $2.75 per box. At Publix last week, they were on sale buy 1 get 1 (b1g1); which made them $1.38 and $1.37 per box. A great price so buy two, whether you currently need two or not, just check the expiration dates to get a long one. Well, to top that off, by couponing, I also had 2 $1.00 off coupons for a box of wheat thins and a box of Triscuts. So, at the end I paid $.38 and $.37 per box of crackers a total savings of $2.37 per box or $4.74 for both.
Example number 2: Orville Redenbacher popcorn is normally $4.89 per box. Last week at Publix, they were b1g1; which reduced them to $2.45 and $2.44 per box. Yet again this is a great price, so buy 2, not 1, it won't go bad before you eat it, but most likely will not go back on sale before you want more. Then by couponing, I had a $.50 coupon for the regular size bags and a $.50 coupon for the mini bags (great for kids). But it gets better than $1.95 and $1.94 per box, because Publix, as well as Kroger, double coupon all the time up to $.50. So, the end result was I paid $1.45 and $1.44 per box of popcorn that would normally cost $4.89 per box a savings of $3.44 per box or a total of $6.88.
Example number 3: Clorox 2 ultra 2x stain fighter and color protector is normally $6.19 per bottle. Publix had it on sale for $3.99 per bottle. A great price, but it gets better, because I had a two $1.50 coupons per bottle. So of course I picked up two bottles. Do I currently need 2, NO, will it go bad, NO, should I buy two, YES. So, I paid $2.49 per bottle for a product that would normally be $6.19 a total savings of $3.70 per bottle.
I think you are probably getting the idea as to how this works using the sale papers and coupons. A plus, I am now buying things I would never have bought before, because I can get them cheaper than the store brand now.
The next topic will be the stocking piling advantage, Part 2.