Professional: water filtration system for the workplace. In my future workplace, this water system will save lots of trash from being made from the wasteful paper cups to the plastic container the water is kept in.
The Definitive Guide to Storing Food without Plastic (Treading My Own Path)
Personal Pin: I pinned this pin because I noticed one of the things I waste the most are paper towels/cleaning wipes. These homemade wipes leave zero waste and contain less chemicals so they are healthier for me and the environment.