I forgot to charge my watch for the first time last night and had to live without it today. Today was the first time I've realised how much I use it. For me, being able to glance at my wrist for my next appointment while I'm at work, discretely reading iMessages as they arrive, and seeing how much excercise I've done are features that have become part of my daily life. It's weird how that happens. Can't imagine not having the Apple Watch now.