One thing that you ought to not do would be to believe that you are able to clean up furniture and flooring damaged by water yourself. Soaked wood is a prime target for molds to cultivate so sanitizing these properly is essential. Intellectually you are aware that keeping water damaged things that are beyond repair or issues that might not have any more use is impractical and can just cost you plenty of space for storage and money but the personal valuation on family heirlooms is priceless.
