Frugalite, Hamilton.

A good and economical laundry powder recipe I found out about is: 1 bar sunlight soap (grated), 1 kg washing soda. Grind it all up in a blender or food processor, in batches if you need to. If do in batches, pour each batch in a large bowl then, when finished, mix well before putting into container/s. Use 1 tablespoon each average load.