On our recent holiday to Ibiza we made the decision not to purchase wi-fi at the hotel. Instead we mostly left our phones in the safe in the hotel room and managed without. I'm really glad that we made that decision, because it made me think a lot about how much I use my smart phone. The trouble is that I feel I need to be contactable - by my husband, by the school or nursery. I also use my phone for lots of things - as a camera, a clock, shopping list, calorie counter, housework organiser. So I tend to carry it about the house with me. With instant notification of a new e-mail or social media mention, I feel obliged to check it straight away. If I'm occupied and can't respond immediately, I start to feel anxious. If I'm halfway through responding and I'm interrupted, I become irritable.