A little exercise

Here is a little learning/writing exercise I find useful:

Imagine a situation and describe it from your perspective in your target language. That's it.

It can be something real you have actually experienced or completely made up. That doesn't matter.

Reasons why I think this is useful:

• It scales very well with your learning progress. As a beginner you can make it as simple as "I am at the bus station. It rains. I forgot my umbrella.". At a higher level you can make it more sophisticated, for example add details, thoughts about social relationships, emotional conflict, an epic battle between good and evil, or expand it into a short story, whatever you want.
• It takes as much or as little time as you want. Write down one or two sentences, and you are done in a minute. It's also great to kill time while you are waiting for something.
• You train useful vocabulary. Just think about how people use language. They describe what they see/hear/want/feel/think.
• It's a natural way of learning because imagination and language go hand in hand. Sometimes I read something I wrote down a year ago and immediately have the exact scene in my mind with all the details I dreamed up, especially when it's something absurd or exaggerated.
• It can be done with a teacher or in a language exchange. Share what you wrote, the teacher or language partner can comment on it, and point out mistakes. Then you can ask questions, add details to the situation, or talk about it. It's informal and has a low barrier to get started.

Additionally you can make drawings, keep it as some sort of journal (that's what I'm doing), or read it out loud to practice speaking.

Any thoughts? Does anyone else do this?