If you noticed that money is easily pouring in, save as if you're a college student. That way you can live like a dignified person when the faucet is closed.
It does not matter whether you're employed or have your own business. Years of easy money do not last very long. If you're employed, companies can close down or you can get retrenched. If you have a business, your sales can easily dwindle overnight due to a competitor or the business environment.
If you have been through income loss or decrease for more than a year, you'll realize how depressing it is. It's different hearing it and experiencing it. You start doing excel sheets of your spending, you stop doing routine things for pleasure, and you suddenly have more idle time in the house because you're trying to save money by not going out.