When you log in to your online account, be sure to check the "Keep me logged in" box so your credentials will be remembered the next time you visit. 

Credentials are only remembered for six months and are not recognized across devices or browser types. This means, if you visit the site using your phone and your computer, you will be asked to log in both places; however, if you check the "Keep me logged in" box both times, you should be remembered on subsequent visits.