Cofounder relationships are among the most important in the entire company.
The best ideas often look terrible at the beginning the truly good ideas, don't seem like they're worth stealing.
The idea should come first, the startup should come second.
... but actually it sucks to have a lot of employees, and you should be proud of how few employees you have.
You can't be focussed without really great communication
Some day everyone will find out everyone else's comp, if it's all over the place, it will be a complete meltdown disaster