The arrival of the New Year often brings resolutions for self-improvement - exercise more, work less, eat better, etc. But have you considered adding protect yourself online to that list?
LastPass recommends that you use a unique, strong, random password for each of your online sites. No more using your pets name or your birthday for your password. No more using the same password for each site. That simply isn't secure.
By spending a little time now changing your existing passwords to strong ones, you will reap the benefits for years to come.