thinkfast can underwrite policies all day long.. But for
some Insurance companies YOU DO NOT NEED A RECEIPTS, dont let the insurance company try to feed you bullshit. ALWAYS READ YOUR POLICY AND UNDERSTAND IT.
You do need serial numbers and models numbers most def.

As far as theft goes wich I know is diffrent as a flood, might work diffrent.

You come home, Place is broken into, You call the cops, Try to figure out what They took if possible, When the police comes let him know what was stolen, Cop will ask you how much you pay for the products stolen he will write them down on the police report.
Call your insurance company, they will send you a itemized sheet.. you must make sure it matches the police report.
LIST PRODUCT
PRICE
DATE OF PURCHASES
NEW OR OLD
WHERE YOU GOT IT FROM
SERIAL #'s OR MODEL #'s

The insurance company will do like a 15 or 20 % depreciation...

and Waaaaaaallaaaaaaaa... taken care of.

How Do I know? My apartment was broken into.. We lost about 8 k worth of shit.
I was never asked for a receipt.

But thats for theft.