I started stockpiling about a year ago. I saw a post about a couponing board and started scanning it for the deals. It has made such a difference in my life. I regularly save between 60% and 80% of my grocery bill. I have a pantry that can feed this family for months. It's amazing how much money I've saved. I am not someone who slaves over the deals 24/7 but I find the things my family will use and stock up!
A perfect example is my shopping trip today. Here's a few examples:
30 Bumble Bee Tuna pouch - $0.29 each ($0.79 sale with $0.55 off coupon)
24 Ragu Spagetti Sauce - $0.39 a jar ($1.39 sale with $0.50 coupon/doubled)
30 Gatorade 32 oz - $0.37 each (buy 10 get 5 free - $0.70 before coupon)
10 Purina Kitten Chow - FREE (FREE coupon - $2.19 each = FREE)
10 Post Cereal - $2.00 for 2 boxes ($1.00 off 2 coupon = $1.00 box)
20 Viva Paper Towels - $0.44 each ($1.29 - $0.85 coupon)
40 3 packs of Ivory Soap - FREE - ($1.00 each - $0.50 coupon/doubled)
10 packs of Pamper Wipes - FREE -($1.97 each - $2.00 coupon)
All these are stock up items for me and all of these deals were found on a full cup.com. I shopped at Krogers,
Walmart and Save A Lot, but also save money at the drugs stores and other grocery stores. It takes a little work but once you get a system down it's easier. I don't carry a binder like some couponers but instead look at the sale in advance and then order or buy coupons that save me $$$$. Everyone has to find the system that works for them.
Good Luck to you and you'll be amazed at how much money it saves.