Fix Ctrl-S in Sitecore 8 RTM Experience Editor

PageEditor.js

// Open the Website\sitecore\shell\Applications\Page Modes\PageEditor.js file
// Search for "e.keyCode == 83"
// Make the statement look like this:

//Ctrl+S
if (e.keyCode == 83 && e.ctrlKey) {            
	e.preventDefault();  
	this.onSaving();//fix for 428752          
	this.save();
	return;
}

// Regards to Sitecore support for this fix - it's not mine.