Utilize your financial knowledge, give your answer or opinion to the input question or subject . Answer format is not limited.

For net worth, should I value physical property at my cost to replace it, or the amount I could get for selling it?
Valuation by definition is what an item is worth, not what you paid for it. Net worth should be market value for fixed assets or "capital" goods. I would consider this cars, real property, furniture, jewelry, appliances, tools, etc.  Everything else can be valued by liquidation value. You can use valuation guides for tax deductions as a way to guide your valuation. Insurance companies usually just pick a percentage of your home's value as a guesstimate for content value. I could see doing this as a way to guide purchase decisions for appliances, cars or the like. But if you are trying to figure out the market value of your socks and underwear, I would argue that you're doing something that's a little silly.