When going to the grocery store and having to shop with a budget in mind making a grocery list and using grocery store sales flyers are pretty much requirements. The best way to stick to a budget is to make sure that only the things that are on sale and that are on the grocery list are purchased.
If you know the amount of a particular item that you use throughout a month or 2 you can stock up on groceries by buying multiples of what is on sale. Stocking up on groceries when they are on sale are the best way to start saving money on groceries.
Most grocery stores put most of their items on sale every 3 months and buy buying enough to get through until the next sale you will not have to spend as much money on each item every time you buy it.
Real World Example
My store has spaghetti sauce on sale this week for $1.00 per bottle. It normally ranges anywhere from $1.50 (good sale) to $1.98 regular shelf price. $1.58 and $1.78 are other often used sales prices for this brand.
I can buy 1 jar at $1.00 which will last me for 2 meals or I can buy more to last longer. I know that the $1.00 price is rare and is certainly not on a 3 month rotation so I buy 20 jars which will last me about 1 year. That will save about $14.00 over the course of the next year and I will not have to buy this item again for that year.
Because I know that I use 2 jars of spaghetti sauce every month and it doesn't expire for a year and a half I'm perfectly comfortable buying that amount because I know that I will use it.
Now $14.00 isn't a fortune but that is one item and the average family buys hundreds if not thousands of items at the grocery store every year.
Each item that is purchased should be on sale at a decent price. Don't assume that just because the store says that it's on sale that you will not be able to get it cheaper another week. Creating a price book for groceries will enable you to track the prices of common items that you purchase. As you continue to stock up on various items as they go on sale your trips to the store will become easier and cheaper.
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