optimize and streamline your development process
Focus on the right features at the right time and start to use agil development methods to be able to constantly develop and test new features.
This is a very nice post which gives an introduction to Kanban and helps Startups get started. The post focusses on Trello but works with Kanbanachi alike.
An easy to organize online board which can help you to structure your feature roadmap and implement a Kanban board (or any other type of board).
Very similar to Trello, Kanbanachi allows you to structure your Kanban board in a visual way, online. Further it integrates very well with Google Drive.
Two simple questions which help to focus on the right features by determine which feature fulfills a basic need/ creates satisfaction/ leads to excitement.
Involve your customers in a fictive game, where they have to buy the individual features of your products - one by one. The results will help you prioritize right.
Speed Boat is another game (again played with some of your customers) and will help you to identify adoption hurdels and complains.
A simple and useful tool to get to the root cause of a problem. If implemented, this methodology is an asset for every product development unit (if not any unit!).