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

I lost my job as an accounts payable clerk and I am not sure what to do first. Thank you in advance. I have a few weeks of savings and a rent payment due. Is there a checklist I should follow?

Give yourself the first couple of days to be upset. I did, and then I felt able to plan.

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