A few weeks ago I updated the design here on my website. My primary motivation at the moment is to share my personal experiences, so I wanted my visitors to only be shown posts from my Journal, but still wanted to be able to publish other content.
After doing some research, I found it was possible to achieve my goal. I just needed to identify the category ID’s I wanted to exclude — which were 5 and 7.
Below is the code snippet I use to remove categories from my blog homepage:
Source: WP Mayor