To maximize productivity during a startup weekend, it's essential to bring your own internet connection, use free tools like WordPress and Google Apps, and assign tasks that don't involve coding to non-technical team members. Managing expectations is also crucial, as the first 10 hours may be "wasted" but are necessary for building trust with new people. A culture that launches should focus on recruiting developers quickly, getting to proof of concept fast with minimal features, and picking an idea that can be built by the available talent. It's also essential to get customers right away, start thinking about a presentation early, and don't be afraid to fire team members who are not contributing positively. By following these tips, teams can increase their chances of launching a successful product at the end of the weekend.