This is probably a really stupid question as I know it depends on how much I intend to pack but I have to buy a new suitcase for a forthcoming child-free trip to Rome. I am very out of practise having not been abroad for 10 years and having not spent more than 24 hours without children in twelve years! So please, could any of you far more experienced travellers tell me what to buy?!We will be away for 3 nights.