What simple little lifestyle changes added up to bigger savings?

Many years ago, I remember seeing a program on how this family cut corners in clever ways and saved millions. Their methods were so effective and well liked they even started a Magazine called something to the effect of “One Million Ways to save a Pound”. I made that title up but it was along those lines. They would for e.g. buy their kids clothes in bulk at sales, and box them. They had a few kids so they would buy ages ahead of them, and the clothes were already “filed away” by age in order to suite the child. I’ve always fancied to do that just to see how much I can save. Have you got any great tips, or different ways to use one item in an innovative way. Or simply ways to cut down costs. I might even start a blog to see how much I do save when I start this project. Obviously universally understood methods might be easier to use.