The Instagram app comes in for a lot of flack from photography purists, but I love it and, these days, use it in place of a compact camera. As my phone is with me at all times, it means I’m ready to take a snap of my dog out on a walk, or something that makes me smile on my way to work. It’s also a great way of getting me to leave my desk and take a lunch break, as I sometimes set myself a project of popping out to the local park and not returning until I have half a dozen or so snaps.