Ask a parent which gift they kept, and it’s rarely the expensive one. It’s the lopsided scarf, the pot holder with one wide side, the card with glitter still coming off. Handmade gifts like that make a parent happy, and they do something for the kid who made them too. Oliver Scott Curry and his colleagues went through 27 experiments on kindness, 4,045 people in all, and found a small-to-medium boost in the giver’s well-being (it’s a 2018 meta-analysis). So when a teenager sits down with a colorful knitting pattern for the first time, or a kid leaves lunch on a desk, the happiness goes both ways. The holidays are close, and these 13 acts of kindness are small, thoughtful gestures of compassion that made some parents’ year.