Ask HN: What practice or purchase noticeably increased your sense of happiness?

My dishwasher! I used to spend 45 minutes everynight doing the dishes... now I load it in 10... let it run through the night and recover 30 more minutes of sleep... which has helped with overall mud and health... best purchase ever

Going to the park with my kids with no mobile device

My headset, for taking calls. Being able to hear people clearly, and know they can hear me clearly, made a significant improvement to my quality of life.

Only putting in loving effort for the sake of others seems to make me really happy.