How do I make homepage template different than all other pages/posts template?

I want a right sidebar for the homepage; however, I don’t want any sidebars for any other pages and posts. Currently, I’m having to check the “no sidebar” template for every page/post that I create when I publish it. I was wondering how I could make the default template for all pages/posts to be one that does not have a sidebar (while allowing the homepage to keep its sidebar)?