I wouldn't say really positive. But it changed a daily slightly negative into a daily slightly positive.

At work I regularly need to take short notes. I like to fill the page to the full. But it gets messier and more complicated aa the day goes on. So I'd strike through and cross out notes I don't need anymore.
The thing is, crossing things out triggers a feeling of making mistakes. So instead of crossing out I started using check-marks (Dutch-style)., which feels like a succes and is also a quick fun flourish to draw. So small annoyances have turned into small victories.