That you can press a button and your wife and children talk at 1.25 or 1.50 or even 2.0 speed.
Also - for the Chazan in shul, a button to press to control his speed - sometimes slower, sometimes faster. Also for volume - lower and higher, as necessary.
"Delete button" for negative thought patterns. When I want to put someone or something out of my consciousness I delete their emails [I find it quite effective]. Need that for other things as well.
A square as you come into shul that everybody has to put a check inside that says next to it "I am not a robot". B/c when we daven - we usually are... [Not an invention and easy to implement].
"Sleep" button on our bodies so we can conk out in seconds as my computer does so effectively.
Something to plug ourselves into when running low on power and BOOM - we're recharged. [For most people this is called "Coffee"].
