Provide Google login: The majority of people wouldn't create an account otherwise. Charge immediately: Stay away from free trials. Paid users = serious users. Launching is the start not the end: Post-launch is 4/5 marketing, 1/5 product. Promote shamelessly: Plug in your product everywhere, not just where it's "safe". Value the unsubscribers: They're giving you the most valuable input. Use your own product as much as you can: You'll find bugs your users haven't rep...