Is there a cheap solution to filter my well water?

I rent a house that has well water. It does have a softener installed but it doesn’t do very much. The water has a light rust color to it. The sinks, bathtubs, and toilets all have an orange stain. It has turned all of our clothes to a dark dingy orange. Doing laundry at the laundromat isn’t an option for a family this size. Installing a whole expensive filtration system isn’t feasible either since we only rent. Are there any other cheap options for the time being?