Related Clues:

• Item often left at apartment doors
• Choice reading?
• It may help one choose sides
• Computer's option list
• Oft-used computer key
• Get into
• Parking lot sign
• 'The door's open'
• Maze marking
• 'C'mon in!'
• Presenter of choices
• 'Step right in!'
• Go in
• Key in
• Sign on a door