It just doesn't matter

SIGNAL VS. NOISE: “The best designers and the best programmers aren’t the ones with the best skills, or the nimblest fingers, or the ones who can rock and roll with photoshop or vim, they are the ones that can determine what just doesn’t matter. That’s where the real gains are made.”

“Most of the time you spend is wasted time on things that just don’t matter. If you can cut out the work and thinking that just doesn’t matter you’ll achieve productivity you’ve never imagined. It’s there if you just don’t pay attention to the things that don’t matter.”

Not much to add here. It’s so much more effective to drop a “nice-to-have” feature or task completely, than it is to do it, but do it cheaply. The trick, of course, is in deciding and agreeing on what those essential features are.