Keep your existing spray bottles and refill them at a refill store, or buy concentrate sachets and tablets that you dilute at home. Algramo's refill dispensers in Chile show the model works at corner-shop scale.
A spray bottle and trigger weigh around 50 g; replacing six a year plus assorted cleaning bottles avoids roughly 500 g. Algramo's radio-frequency identification (RFID) refill containers reach about 325,000 customers through 2,000 stores and save low-income families around 30 percent on essentials.
The catch: some concentrate tablets come wrapped in PVA film, which dissolves but is itself a synthetic polymer; paper-wrapped tablets or bulk refill avoid that.