K.R.
I do it, and love it. I have a small family so my stockpile isnt as big as I would like it to be (no point in having 20 bottles of laundry detergent) . So sometimes I get bummed that I can't buy some of the deals, even though they are so great. I use the website from above because they do most of the leg work for you, you just use the coupons they tell you to and you get the same deals they do. I also don't buy some of the things (like hot dogs, or any other packaged meats, medicines I don't use etc) but for the things I do use, its a great tool.
Good luck!