Ask HN: How do you use LLMs for your everyday work?

Many comments allude to regular/daily use of LLMs as productivity enhancers, but few go into detail. I have read long blog posts about things that LLMs _can_ do but I have seen less discussion about typical use cases. I personally have not found much value, net of prompt engineering costs. Yes I have an OpenAI subscription and use GPT-4.

So, how are you all using LLMs in your daily work?