Sherry offered me a list of research options: the one project that intrigued me the most consisted of finding out the environmental fate of certain very inert industrial chemicals – the chlorofluorocarbons (CFCs) – which had been accumulating in the atmosphere and which at that time were thought to have no significant effects on the environment. This project offered me the opportunity to learn a new field – atmospheric chemistry – about which I knew very little; trying to solve a challenging problem appeared to be an excellent way to plunge into a new research area.

My job was basically to be a delivery boy for all kinds of things, but they also — because I was at Georgetown and studying international affairs, I was assigned to read six newspapers a day and clip the most relevant articles. This is the technology we used. You couldn’t scan articles. There was no “online.” There was nothing, right? So I would read the newspapers, clip the articles I thought they ought to read, put them on a routing slip, which had on it the names of the senior staff of the committee and all the senators who were committee members. And I would send it to the senior staff, and they would decide whether to send any of them on, but I don’t think I’d have won a Rhodes Scholarship if I hadn’t been a clerk on the Foreign Relations Committee. Nobody else I was competing with read six newspapers a day, and they actually paid me good money to read The Washington Post, The New York Times, The Washington Star, which existed then, The Baltimore Sun , The St. Louis Post Dispatch , and then we alternated — and — oh, and The Wall Street Journal . We read them every day. Those were the six papers we read. I did, and then that’s what the senators got.

In the whole of my career, there were very few training sessions that I missed. Even when I was pregnant, I trained all the way through. I was back training when my daughter was two weeks old. You've got to commit to this, because it can be really easy to walk away from the track, convince yourself, "Oh, well, I'll do it tomorrow, I'll catch up". You can't and what I say is it's all pennies in the bank. When I say that to my daughter, she rolls her eyes at me, but you put a couple of pennies in every day and when it matters, then you've got this bank to call on, as opposed to you can't stick them all in two weeks before.

So I decided I was going to invest my time. I spent Monday through Thursday at Frito-Lay, commuting from New York to Texas. Then Friday, Saturday and Sunday, I did my regular job in New York. It was an incredible commitment of time but it was an amazing developmental experience. It was challenging, broadening, and helped me reach the position I have today.

On the best days, I stop pleading, stop bargaining and watch-checking and fall into a rhythm so satisfying that I simply forget I’m working. So much of my writing day feels like well-digging. Sometimes I dig 200ft down before coming back up, dry. Every day I search for water.

Usually, my irrational bargaining goes something like this: I start working at around 10 if I’m feeling motivated, 11 if I’m not. I reread the work from the day before and/or passages that I think I got right in order to try to set the tone. I write a sentence. I read it aloud. I delete the sentence. I look at the clock and wonder if it’s too early to think about lunch. I tell myself that, if I can make it to 300 words, I can break for lunch.