In case of problems, shake your Mac!

Shake to Undo is an application designed for the base IOS and developed by Nate Stedman , allowing just shaking the iPhone, to make an Undo (Undo) ... The equivalent of CTRL-Z or CMD-Z. Practical and fun ... He had the foresight to bring its code on OSX, which means that it now runs on Macs equipped with an accelerometer (ie laptops like the MacBook Pro, MacBook or Air).

You plant in the drafting of a sentence? In a stroke of a pen in toshop? Do not panic, take your laptop and shake frantically and screaming like a madman! It's relaxing and it's much more fun than making small CMD-Z of depression ...