No matter how good your initial tenure is, no matter how good it feels, no matter how amazing you see your company, as the CEO, as a leader, have a plan B. Know what's next, know where you're going next, and make sure you're always talking about it. Be absolutely zealous about ensuring you know the next piece of TAM you're going to go after. Think about what's going to happen if you have more money, what would you do next. Give yourself that opportunity to dream, but make it real, make it defensible.