Days 1-3: ensure husband catches San Francisco stomach bug. Eat ... not much.
Day 4: get up at 6am, spend 5 hours on trains, 1 hour in New York subway, 6 hours in job interviews. Eat whatever junk food you can bear to buy in random train stations (although I must recommend the lime and coconut bar at Dean & deLuca)
Days 5-7: catch stomach bug yourself. You'll be too sick to think about food. Let's just say it's a deeply cleansing experience.
Enjoy your new lean body, if you are strong enough to care. You might be too tired to shower, make dinner or walk the dog.
Please don't try this at home. Being sick sucks. Being sick in the middle of a very stressful week sucks even more. And I don't even know if I lost 5 pounds.