Layoff happened 4 days ago, feeling lost - what worked for you?

They called a meeting on Tuesday and 4 of us were let go. I had been there 4 years. I have read a lot of threads here and could not find my exact situation. I have a few weeks of savings and a rent payment due. Is there a checklist I should follow?

Keep everything in writing and save the confirmation numbers. It made the follow-up calls so much easier.