You should have these documents (or copies) in a fireproof safe at all times, and with you in case of an emergency:
Drivers license
Copies of credit cards — front and back
Health insurance card
Property deeds and titles
Basic info about employee benefits
Auto and homeowners insurance
Life and umbrella liability insurance
Wills
Trusts
Powers of attorney and other estate documents
Copies of last three state and federal tax returns
Children’s adoption papers
Marriage and birth certificates
Passports
Military discharge papers
Also, take the time to do a household inventory. Go room by room with a video recorder and document your belonging.