Here are some things I use it for:

1. monitoring anything online and giving me a summary when something changes

2. contribute or make edits to any online forum (where TOS allows it)

3. Giving it access to any API / cli gives you a natural language interface to that service.

4. Memory / notes retrieval. It can search through its discussion / thought history and answer detailed questions about what happened in the past.

5. Any standard GPT cases but it has a much more specific memory of who you are and what you might be interested in.

6. If you ever want to add capabilities you just tell it to add a new skill to do xyz and it just does it.