Setting alarms and timers is fantastic with Siri. Nap alarm: "Wake me up in X minutes/hours" Normal alarm: "Wake me up at X AM/PM" Timer: "Set a 45 minute ti

Setting alarms and timers is fantastic with Siri. Nap alarm: "Wake me up in X minutes/hours" Normal alarm: "Wake me up at X AM/PM" Timer: "Set a 45 minute timer" Other than that, I don't use Siri. I find that if Siri gets my query wrong even once, it would have been faster for me to look the thing up manually. Oh, also as a party gag you can ask Siri what 0/0 is. Stone cold.