I read (and regularly rely on) a coupon blog called This Beautiful Frugal Life. Recently she wrote a post about why she coupons. She told a cute story about how much her son loves Johnson Bubble Bath and she coupons and gets it for cheap because sometimes he pours it all over their carpet. You can read it here.
My reason for couponing is a little different. I enjoy couponing because it allows a little wiggle room in our budget for things I don't expect to buy. Yes, I love being able to score diapers and wipes for cheap (we use a lot around here) and all kinds of cereal (the less sugar kind) and Albertson's doubler deals. But for me recently this un-planned-for item was pregnancy tests. I needed to buy some because I couldn't figure out my cycle. Usually I hate doing this, because they're so freakin' expensive. BUT I had some +UP rewards at Rite Aid that were burning a hole in my pocket so I loaded up three kids to Rite Aid on my non-grocery day (shocking, I know) and bought two boxes, because they were BOGO 50% off AND I scored the boxes with an extra test in each. Six tests and out-of-pocket I paid about $6.
The lady at the cash register asked me how old my kids were. My face turned red. "Um, they're 6, 3.5, 13 months and yes I just bought two boxes of pregnancy tests thank you very much."
So that's why I coupon, because sometimes things just come up.