What would you do if you find a bag of money worth 1000$?

If I couldn't find to who it belongs, then I would keep it and save it.

if it was just a bag of cash with no id or anything i'd keep it.

If there's something in the bag together with the money that can bring me to the owner, I would track down and return the money. It's a lot of money for me and I believe someone who lost that money in urgent need of that money in cash that he/she has to put it in a bag. I would go on twitter and tweet about it with minor information to see who will come to me with the true/fake claim. I will not go to police,, really I don't trust police in my city with money because I had bad experienced with police before and it's included money

I would turn it in to authorities to see if owners can be found

id definitely $hit myself. after that id send out some feelers about the money.