It's very simple. When you get ahead, you quit. You go home. You take the money. Then you return to the casino with a limited budget and if you get ahead again, you quit again and go home and take the money.
I'm confused about implementation. Let's say I've just finished a winning session. How do I know when I'm clear to begin a new one? I understand I have to go home, but what if I'm on a trip? Can I go to my hotel room instead?