> Good engineers themselves design systems that are more robust and easier to understand by others. This has a multiplier effect, letting their colleagues build upon their work much more quickly and reliably - How to Build Good Software
The advice above is probably one of the things which would have the most impact across all your activities as a developer. When people talk about simplicity in software, they don’t necessarily refer to ease of use or number of lines of code, but instead it’s about how understandable a solution is given their shared knowledge.