"Remind me [at datetime/in x hours] about Y." is very useful for handsfree reminders. I have an alarm clock that reacts to "Hey Google" so I just say "alarm at xyz" to set alarms. With the phone, "Navigate home" saves a few seconds compared to opening Google Maps and hitting the "Home" shortcut.

I'm just waiting for Google to send the email with the title like "An update about Assistant's future" to make the clock e-waste. On the phone I tried Gemini but that's slower because it needs a brain for simple text parsing..