Long TextExercise 83 of 90

A few months ago, I calculated how much money I was spending on lunch every week. Between sandwiches from the café near my office, the occasional salad bar, and the coffee I bought every afternoon, the total came to nearly forty pounds. That's over two thousand pounds a year - just on lunch. I decided something had…

• Why did the writer decide to change his lunchtime routine?
• What difficulty did the writer face during the second week?