I’ve been using return more to stop logic inside a function. See PPK: Returning to stop the function.

// within conditional
function doStuff() {
  var myCondition = checkCondition();
  if ( !myCondition ) {
    // do
    // lots
    // of
    // stuff
  }
}

// proceed if condition is met
function doStuff() {
  var myCondition = checkCondition();
  // don't proceed if not myCondition
  if ( !myCondition ) {
    return;
  }
  // do
  // lots
  // of
  // stuff
}

The benefit is that the subsequent code isn’t all held within the conditional, thus breaking it out of an unnecessary nest… like an newborn eagle on its first flight.