I use coupons all the time and think it is fun. Target recently had several $1 off coupons on up and up brand products, so I stocked up on the daily shower cleaner for just 97 cents each. I also got a few dozen dental floss and ibuprofen boxes for free to share with my friends and family. Combining coupons can get you great deals or free things. At BJ's Club or Target for example, you can use a store coupon combined with a manufacture's coupon on the same item. Often, coupons come out at the same time items are placed on sale, so the savings can be significant. I save about 1/3 to 1/2 on my shopping bill with minimal effort, and if I spend a bit more time, save significantly more. Because I stock up and buy things before I run out, I rarely ever have to buy something at full price. Persihables like fruits and vegtables are an exception, but I usually buy them at a farmers market so I get higher quality w/o the grocery store markup.
Right now I am on a bit of a cleaning product sabbatical. I have at least two years worth of dishwashing detergents, laundry products, and household cleaning products, so I am not buying any of those for a while. At least that is what I keep telling myself. But I can't resist when I can get a 12 pack of Finish Quantum for less than a dollar, like I did over the weekend. Most cleaning products will hold, except those that contain bleach. They tend to degrade relatively quickly.