Possible Clues:

• One of those successes following a meeting at the bar gets carried away with business trip
• The case for a two-day visit?
• Case packed for short stay
• Luggage for a short stay?
• It's held by the stopper that pulls out in the morning
• Small travel case
• Sounds like queen¿s place at investiture ceremony is trap used for sleepover
• Carrier bigger than rocks found by middle of cove
• Item of day-to-day luggage
• Small case