Just got laid off, what should I do first? after 5 years as a data-entry clerk

I was let go as a data-entry clerk 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. Which steps were urgent?

Thanks for writing this out. I went through something close to it last year, and it settled down once I kept a simple log of every call and form.

Ask for your final pay, unused leave and any documents in writing before you leave, if you still can.