One of the keys to focus, and why I said cofounders that aren't friends really struggle, is that you can't be focused without good communication.

Remember that you are more likely to die because you execute badly than get crushed by a competitor.

One thing that often disrupts momentum and really shouldn't is competitors.

Momentum and growth are the lifeblood of startups. This is probably in the top three secrets of executing well.

You want to continue to be run by great products, not process for it's own sake.

A lot of people treat choosing their cofounder with even less importance than they put on hiring. Don't do this.

If you want something in a deal, just ask for it.