Honestly, not washing clothes as often, T shirts can last two days before axwash jumpers and jeans mote like three, or four days before they need washed. Socks, and underwear I do not recomendcwearing for mire tgan a day really.
Not only do you save money on the electricity for the wash, your clothes will last longer.
I think i am a bit of a crusty punk for that but meh.