As an academic librarian, the most heartbreaking thing bar none that I witnessed was when students had not saved their work in many minutes or hours, and a computer crash or battery failure nuked their work. This was a huge problem with our laptops and our network for many years, until better machinery and cloud storage solved the problem.
These are little signs I made to be taped to the sides of PC monitors (vertical designs) and to the hinge area of laptops near the battery light. Plus a business card with helpful URLs for web outages.
