This master thesis project focuses on personal hygiene and how to efficiently wash yourself, with a focus on biking commuters and crowded family bathrooms. The project was initiated as a submission to the 2016/2017 Jumpthegap contest, where emphasis has been on sustainability and the future of the bathroom space. Today up to 74 % of Danish people shower six or more times each week, which results in the natural oils and bacteria on the skin being washed away too often, causing an increased risk of infections and dry skin. The project resulted in the product called EEWA, which can be used as a substitute for half these daily showers. It provides a gentler and more efficient washing of the body by focusing on cleaning the essential body areas; the armpits and the crotch.