This is a big topic, with a lot of use cases (capturing information, tracking stuff you have to do, learning, etc.) In my case, I have the work roles of profess

This is a big topic, with a lot of use cases (capturing information, tracking stuff you have to do, learning, etc.) In my case, I have the work roles of professor, administrator running our grad programs, and journal editor. That's a lot of data that has to be captured, processed, and queried over and over. Without a good system, I literally couldn't do my job. The better I am at handling that data, the easier my job gets.