libre office
not being a smart arse either. it's the easiest way. i am making some assumptions however. i assume you are a full on Linux user at home and have to deal with MS Office documents of various types at work or some other reason.
you can work on that document at work un MS Office. bring it home and work on it some more in libre office. and back again.
python
i automated a ton of repeatative and boring tasks. made my work life super easy. made some tools for my manager to harvest all drawings for a user specified product. sky is the limit. well until you type import cosmos /s
Naw new engineer, im like thank god heres a new lightning rod.