First of all, you should know what your website will be about. This is the topic of your website. When starting to build a website WIX actually asks you this question, to suggest themes suitable towards your idea. You should also have an idea of what content is needed for the website. Is the website built on images, if it is a photography blog? Or/and, will you need an about page for example?
Each of these pages serves a specific purpose for your store and its functionality. The good news is that most themes these days are optimized to make those pages look right. The Neve theme is no different. If you visit any of these new pages, you’ll see that the presentation is clear and everything is easy to grasp. Here’s an example of the shopping cart page: