If your a netflix subscriber like me and shares the account with someone else in the house, it gets really annoying seeing what they watched and doesn't provide you with proper suggestions. Well that just changed today, netflix is now starting to roll out multiple profiles on a single user account. Here's a link on some more information on it:
Netflix debuts multiple user profiles so your roommate won't screw up your recommendations | The Verge
This additional link is to manage the profiles if you want an early start beforehand but you need to be logged on before trying this link:
I've tested it out and works only for Netflix website, PlayStation 3, iOS devices, smart TVs and the Xbox 360's so far but they intend to make this work for more devices as far as I know from the article. Hope this info helps out!