Traditional household cleaning supplies use rigid plastic spray bottles that, when empty, need to be thrown away. Planet People is taking cleaning supplies to the next level with its new iQ line, featuring reusable spray bottles that minimize the amount of waste that might end up in landfills. Despite using plastic spray bottles, the cleaning concentrate-a chemical and toxin-free, plant-based formula-is actually contained in a small cartridge that is inserted into the bottle. When the cleaner runs out, you simply add more water to your existing spray bottle and place in a new cartridge; the old cartridge can then be recycled. The iQ line features glass, bathroom, all-purpose, and floor cleaners.