Re-blogging Eric’s post from our internal blog:

Here are my notes from reading 37signals book, Getting Real—it's an outstanding read. Money quote:

"Each time you say yes to a feature, you’re adopting a child. You have to take your baby through a whole chain of events (e.g. design, implementation, testing, etc.). And once that feature’s out there, you’re stuck with it. It’s like ‘Fight Club.’ You should only consider features if they’re willing to stand on the porch for three days waiting to be let in."

This should be tattooed on the back of the eyelids of any PM or founder.