Another great use case for me has been richer search. I'm looking for a new apartment to rent right now so I gave Muse all my (long) list of requirements and preferences and every day it searches Craigslist and Facebook marketplace to see if any new places pop up that fit my needs. It only pings me if something worthwhile comes up. I've stopped short of actually having it email the landlords and arrange showings for me, but that's theoretically possible.
I've been using Muse for all of the above, but I'm trying to move off of it onto a self hosted hermes to avoid giving Zuck the keys to my personal life. I've really been inspired by this personal super app blog post and I'm trying to get my personal agent to create some custom UIs on demand for the above use cases instead of just interacting via a chat window.
https://wilhelm.substack.com/p/building-a-personal-super-app...
I would have figured it out eventually on my own - but likely not until my calendar fired a "time to leave" notification and then I'd have to pay the cancellation fee and place an awkward call to the restaurant.