The document describes three case studies about improving efficiency and reducing costs: 1) A packaging solution using new colorful shelf-ready packaging that increased compliance by 15% and reduced cardboard usage, saving over £100,000. 2) An analysis of a worker's day that identified inefficient routines, which a company addressed by automating sampling requests and optimizing loads to save money. 3) No summary is provided for the third case study as it does not contain enough information.