For an easy productivity win; you can automatically add an npm Node.js module dependency into the package.json file during the initial installation:
npm install module_name --save
If you now check out your package.json file, it will have updated the dependencies object automatically for you (it will have grabbed the latest version – and appends it with a tilde):
{ "name": "save-dev", "version": "0.0.1", "dependencies": { "module_name": "~0.4.2" } }
You can also automatically add module dependencies to the package.json in Grunt projects in case you’re interested.