My tweets

• Sat, 23:52: Took £580 this afternoon at @oxfambooksox, 10% of which was me buying books for @tinyjo's school. I'm my own best customer. #mylifeinmetrics
• Sat, 23:56: Related: I biked home today carrying 8% of my bodyweight in books. Luckily not much of that is uphill... #mylifeinmetrics