Not only is bleach a harmful substance on its own, if used with some other cleaning chemicals, bleach can also cause a reaction that releases toxic vapours. This would not only cause you to be sick, but regular inhalation of these fumes can also cause damage to your respiratory health. For example, when bleach is mixed with products containing ammonia, it can cause damage to nasal ways and lungs.
Reusing product containers and reducing the amount that you use has multiple benefits to the earth. Not only does it reduce the amount of waste sent to landfills and oceans, but it also prevents pollution as it is reducing the need for new plastic production and the use of new raw materials. Reusing also allows the plastic to be used to its fullest potential, with the longer lifespan it has before it is then recycled.