I am a frequent reader of Paul Thurrot’s Microsoft Insider blog and think this one about securing your internet identity/accounts is very worth to share, and probably a good intention to do (soon) in 2017!
In the blog post, he talks about how important and easy (!) it is to secure your online accounts on Facebook, Dropbox, Microsoft, Google, and so on with the Two-Factor-Authentication and why you should use a separate password for each online service you are using! As probably nobody can remember all the passwords used anyway, he recommends to use a password manager, such as LastPass or KeePass.
You can find the article on thurrot.com. Start now, and secure your online identity!