5. Cat litterĀ
On some types of cat litter, the label says that it’s flushable, but honestly speaking, most toilets don’t use enough water to clean the pipes properly, so throwing these things in it might not be a good idea.
Other waste from the cat litter cannot be flushed because the crystals have the property of dehydrating the liquids and it will be difficult to flush. So you better take a garbage bag next time you clean your cat’s litter.