Did you learn something? Did you stretch yourself? Did you challenge your assumptions, or your practices?
Do you feel like you achieved something last week? Did the frustrations inspire you to make it easier next week? Did you share them with others, in the pub, or on your blog, so others can learn from your frustration?
Did you set new goals? Are you going to be a faster typist? Are you going to learn functional programming? This time, are you going to lose weight?
Did you make new connections? Did you make an effort to understand the people you work with? Did you do something to strengthen your work and personal relationships?
You don’t have to do all of that. But did you think of it? Did you write it down? Did you, in some small and agile way, improve yourself?
Can you say to yourself, today, that you had a useful week?