The first job I got after college was for data entry where I was expected to go to an email inbox which received some automated messages with some strings in them and to copy these strings and paste them into an Excel spreadsheet.
I was expected to do this for ~6 hours a day every day. Sitting there, copying and pasting strings from some email. Then this spreadsheet would be forwarded to my boss who would forward it to some other people (I don't remember who these people were, probably for auditing of some kind).
After a couple of weeks of this I really started to hate it. I had taken a class on spreadsheets when I was a kid and knew that there was a way to automate it all, so I did a couple of Google searches and figured out a way to copy all of these numbers automatically. It was done using some VB script IIRC and some spreadsheet formulas.
I stupidly told my boss. So now he had me doing other stupid and mind-numbing work for those 6 hours I would have been copying and pasting strings from the emails (like manually burning hundreds of CDs one after the other with Windows XP and a CD-burner which only worked half of the time).
I quit a week or two later, but learned a valuable lesson. Don't tell your boss. Side note: this is how I became interested in pursuing programming as a profession.
It would be great if there was a means for people to sell technology like this to their employers, for those rare cases where someone goes above and beyond the expected solution. In reality employers don't care because they own your output regardless so why do they need you?