Tomorrow I will be getting on a plane and heading back to Greece for a well-deserved three week holiday and I. CAN. NOT. WAIT. This time we are going to limit our luggage to carry-on only which seems wonderfully practical when you have to catch four flights and a ferry to get to your destination, but it also poses some packing problems in the beauty department. I’ve taken up the challenge though, and whittled down my toiletry bag to include only limited liquids and plenty of travel-size items to maximise space. Using up samples and testers is a great way to…