A better way to load deps

task-slow-good.js

'use strict';

module.exports = function(grunt) {
  grunt.registerTask('my-task', function myTaskFn() {
    // This code only gets run when your task executes, 
    // so you can do work here and not worry about
    // slowing everyone else down.
    var bigDep = require('big-dependency');
    bigDep();
  });
};