overspending in Tesco

I always buy too much. I know that I just need a few certain things, but will always end up getting something that just looks good! Ooh, especially puddings. They are my downfall... I'm also one of those suckers who always buys something on sale, because 'it's such a good deal!' So I walk through the shelves thinking, 'Oh, look - I could get three packets of biscuits for the price of two. Of course, I wasn't even planning on getting any, but it's such a good deal!' I'm really hopeless, I know.

no idea, never been there.