More Google Now commands

I find myself using the voice commands within the search app quite a lot. But I'd like to see more.

For example:

(all without punctuation as that is what Google recognises)

Okay google where can I find good deals on tinned tomatoes

Okay google let my wife know where I am

Okay google switch on bluetooth

Okay google play me a podcast by this american life

Okay google let me listen to the radio

Okay google add new item to my task list

Okay google what am I looking at

Okay google how much longer will my battery last

Okay google show me my internet history

Okay google when did my wife last text me

What other things would you like to do by speaking to your smartphone/smartwatch?