Very mundane tasks but it saves me some time:

* Automatically clean Windows desktop from garbage and temporary files that are older than 15 minutes

* Download and parse Ngnix web-logs every day, extract notable events

* Send myself email notifications about certain currency rates hitting certain thresholds

* Backup certain folders on schedule

* Pull data submitted by others from Google Sheets, export it into a database

All this done using EasyMorph (https://easymorph.com) - the visual data preparation and automation tool that I'm working on.