Stockpiling doesn't have to be that extreme, but it's the process of buying items so that you are not a slave to the store.What do I mean by being a "slave to the store" is buying groceries when you need them. That might sound crazy, but read on...
If you only buy products when you need them, then you are forced to buy the product at the price the store sets for you. If you need butter and the cheapest butter you can find is $4.00 than that's the price you will have to the price that they set. But if you collect coupons and have one that's $1.00 off one pack of butter, you wait for the butter to go on sale (say $3.00 a pack), and then use your coupons to bring the price down to $2.00 a pack. So even though you don't need the butter, you buy some when it's a "stockpile price" because you know you use butter in the near future.
Stockpiling allows you to wait until the products you use on a regular basis are at rock bottom prices (and hopefully with coupons). Then you buy enough to last you until a rock bottom price comes around again. How do you know how many to buy? Think about how much you use an item in a 3 to 6 month period. This is how much you buy (if you have space) because this is about how long it may take for that item to be at rock bottom price again. Sales usually come back around every 3 to 6 months. In this area, it's a little sooner since we have so many different grocery and drug store in close proximity.
The idea is that with your stockpile, you can go there when you need something that you will always pay rock bottom prices for instead of going back to the store and more than likely having to pay full price.
Speaking of rock bottom prices, I was able to match up a sale with coupons to get 20 ounce Lipton Natural Tea for $.09 a bottle! Got these at the Safeway this morning! The sale is on until Tuesday, Sept 30.