If you live in Cook county and own or have owned property in the last 5 years check this site to make sure the treasurer does not owe you money due to you not claiming your exceptions, She is holding close to $1.5 million.Mostly to people not claiming homeowners. That is $500 each year,so if you have not claimed it for the last 5 years that is $2k. I did the search for my mom and some friends. My mom I got her $500 and my one friend 2k.
https://cookcountytreasurer.com/setsearchparameters.aspx
Just enter your address no pin number needed,do not enter the compass direction,ie n,s,e or w. If you live outside of Cook check you counties site they might have a similar set up

The other thing is "lost" cash. Mostly last paychecks and stuff like that. First time I did it I had my last paycheck from UPS sitting there,$400 in my pocket. They made it even easier. Most claims,under $2000 I think, you do not even have to mail in a notarized form just fill it out online. Most states have same type of system in place as it is a federal law.
https://icash.illinoistreasurer.gov/

Just pop in your name and look away.

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When I am stuck and need to figure something out I always remember the Immortal words of Socrates when he said:"I just drank what?"