Bing has added "My Saves" search capability so that once you've found something you can save the search for later. It works with video, images and shopping searches. As long as you've signed in you can take the searches across your devices.
This actually sounds quite clever, and useful, for those who do give up personal privacy to "login" to a service. Nice way to bookmark the finds across devices (which would require having an account). One more perk for the user ... one more hook for the company.