"Izzy flute" The iPad chirruped and up bobbed the reminder for my regular babysitting slot. Me, Max and Charlotte hanging out while Izzy has her flute lesson.The first pangs of homesickness.I quickly deleted it and all alerts still there for the remainder of the year. Whenever we're overseas I'm usually so focussed on the present I tend not to get homesick. Just the odd little thing sneaks up on me.I'm currently in Lanzhou, Gansu Province, China, wit...