I think that's just DIY. Does doing the dishes increase happiness? Unlikely. But fixing something or cooking a new dish is going to venture into learning and thinking and hopefully some level of increased awareness of how other parts of the world work.
With that said, there can be real value to walking mindlessly behind a lawn mower for a few hours.
I find doing the dishes somewhat meditative. If I've spent the morning grappling with a difficult work problem then I need something mindless to do for 20 minutes.
With that said, there can be real value to walking mindlessly behind a lawn mower for a few hours.