How I’ve been viewing Daring Fireball for about the past two weeks.

Single column 16px Helvetica Neue thanks to User CSS.

body {
    font-family: HelveticaNeue !important;
    font-size: 16px !important;
}

#Box {
    width: 40em !important;
}

#Banner {
    margin-left: 0 !important;
}

#Main {
    margin-left: 0 !important;
    width: auto !important;
}

#Sidebar {
    display: none !important;
}