Most cleaning fluids aren’t very environmentally friendly, but not in the ways that you might think. Water is the typically the main ingredient, and that’s heavy, bulky, and expensive to ship. They’re also packaged in single-use plastic bottles. To reduce carbon emissions and plastic waste, cleaning startup Blueland dispenses cleaning fluids as tiny tablets of soluble multisurface, bathroom, or glass cleaner. Just drop the tablets into Blueland’s 20-ounce, reusable “forever” bottles and fill with water from the tap. When you need more tablets, Blueland sells them in packs of three, six, and nine, and they’re considerably cheaper than buying yet another bottle of cleanser from the supermarket.