Very boring I know!
Our washing machine has a 30 minute option, at 30C. This is what I use for 90% of the washing. DH washes everything on the "normal" programmes which I think is a waste of time and energy. He thinks the "quick wash" options are for things that have barely been worn. I think it's for everything except towels and heavily soiled items.
Does anyone else use the 30 minute/quick wash programme as their default?