For a startup, feature creep can be the death of you. Many a great idea has been overburdened by too many features or too complex an implementation. It’s important to get the features right but it’s also important to get the project done. Leo over at Zenhabits has a wonderful list of principles that can help you get your project done. You can check it out here.
I particually like:
“Practice Good Enough.” and “Done is better than right.”
Too often, people get wrapped up in creating their masterwork when all they really have to do is good enough. You can always revise later.