Gmail's automatic bulk filtering works pretty well, but sometimes some newsletters and mailing lists creep through. Keep only the most important emails in your inbox by adding a filter: Skip the inbox if the email has the words "If this email does not display properly."
This smart filtering tip comes from The Next Web. In addition to skipping the inbox, set your filter to apply a label that identifies these mass mailings (TNW has "Don't Bother Me" as theirs).
The filter might not work on all non-personal emails, so be sure to add additional words to filter we've noted before, including "opt-out", "unsubscribe", "update profile" and "edit your preferences".
Also see our ten must-have Gmail filters, which you can download.