title: is it necessary to have node_modules folder created for every project while using grunt
body: <p>while using grunt node_modules directory is created for every project I create and their is a lot of duplication going on, which I don't like....</p>
  
  <p>I am using grunt-collections now but it is very inefficient, and looking for an alternative solution for this.
  I don't know much about node but is it not possible to use grunt modules from the central node_modules directory within nodejs directory????</p>
  
  <p>Edit: 
  Is their any way to install packages globally...????</p>