Just got laid off, what should I do first? (update)

I was let go as an office manager this week and I am still in shock. I have read a lot of threads here and could not find my exact situation. I have a box of my things and a short letter about benefits. What did you do in the first week?

I made a short list: benefits, bills, documents, and then my résumé. One thing each day kept me steady.

Thanks for writing this out. I went through something close to it 3 months ago, and it got easier once I kept a simple log of every call and form.