"To-do lists" appears to be a theme from this source, since there's at least one more to-do list currently on the site: https://www.google.com/search?q=site:op

"To-do lists" appears to be a theme from this source, since there's at least one more to-do list currently on the site: https://www.google.com/search?q=site:openculture.com+intitle:%22to+do+list%22 https://www.google.com/search?q=site:openculture.com+intitle... Johnny Cash's Short and Personal To-Do List: http://www.openculture.com/2012/09/johnny_cashs_short_and_personal_to-do_list.html http://www.openculture.com/2012/09/johnny_cashs_short_and_pe...