Disclosure: Work at Amazon but am mostly just an Alexa fan.
Wake up, Ask Alexa for the news, Alexa turn on lights and TV. Cook breakfast, set timer using Alexa. Leave message for kids.
Go to work for x hours.
Come home, Alexa news, alexa audio book, cook dinner, add low items to shopping list, doorbell rings, Alexa check security camera. Sit down to eat dinner, Alexa play Spotify. Alexa turn off the lights. Alexa wake me up at 6:30.
Potentially you could make it do anything you can code on your PC.
I particularly like being able to do the voice note when I'm trying to go to sleep but think of something I need to do. I can just say it outloud and not have to look at my blinding phone.
Edit: I also have a plan to add a command to schedule commands. So I could say something like "schedule March 6 message cliff Dude pancake day is coming soon!"
The Dot is easily one of my top 5 kitchen gadgets, it handles multiple concurrent timers, it's hands free so you don't get schmoo from your hands all over it, it can do unit conversions (e.g. How many teaspoons in a cup?), and math (e.g. What is 5 times 1/3?).
These are all things you can do yourself but just as you might ask someone "what's 54.32 * 3?" to save yourself some mental gymnastics, you can ask Alexa those same types of questions.