What would you do with $10k?

Crack Cocaine, Powder Cocaine, Prostitutes

Buy a car with half of it, invest the other half into something and use the car to get to places which it’s an investment too

There are several scenarios with different uses for this capital.

If the 10k is all your capital and it was acquired as a result of work, save it as emergency capital to keep your mind free from "surviving".

If this amount is dedicated to investments and you do not have a specific business, first, discover and validate it with specific channels with part of the resource and then scale the operation.

Bitcoin!