models-2.ejs

project.save(function() {
  // my nice callback stuff
})

task.save(function() {
  // some other stuff
})

new Task({ title: 'foo', description: 'bar', deadline: new Date()})
.save(function(anotherTask) {
  // you can now access the currently saved task with the variable <i>anotherTask</i>... nice!
})