A new way to get gralats, weekly objectives will give you lists to do certain tasks(about 3 a week) and will pay high amount of gralats when you've done each and a bonus 3000 gralats for doing all of them. Here is one task I came up with:
Train company tasks
You'll have to collect certain amount of fossil fuels for the train company such as 500x coal. Selling 500 coal will originally be 4k gralats, instead you'll get +3000 meaning you'll get 7000 gralats.
This is just an idea and the scale of how much gralats you get or how much of the item you give was just a quick thought.