Add the secret ingredient...
1. Assemble the hotel room's ironing board. Yes, you read that right. The. Ironing. Board. Now heat the iron. Hot.
2. Let each person have the fun of ironing their own sandwich on both sides (of course, the littlest ones will need supervision).
3. Unwrap, garnish with carrot and celery sticks and eat.
Betcha everyone will ask for seconds! And, best part of all? There are no dishes to wash!
P.S. Anybody travelling solo and staying at a hostel? You'll be both a "Travel Star" and an "Entertainer" when you bring the iron from the laundry room into the kitchen to create your grilled cheese wonders. Enjoy everybody!