The most important thing to do in the business is managing your cash flow. See, there is only one fundamental truth in business. That is having hard cash. If somebody owes you money, till that money comes, it is not yours. If you have inventory, which can be sold off, till you sell them off and count the money, it is not certain. We can go on and on. So, the hardest fact of any business is seeing cash. If you have control over cash, then you are king. You need to minimise the cash losses and maximise the cash profits. That is the secret of a good business.