A few uses of Sublime Text 3 that you could use
Markdown
Sublime perfectly replaces all third-party markdown editors. There are several plugins that provide comfortable work. The best of them, in my opinion, is MarkdownEditing , authored by the famous developer Brett Terpstra . What gives:
- Text highlighting
- Shortcuts
- Markup completion
- Color schemes
- Other more specific things

Task lists
In general, the Plain Tasks plugin is quite powerful, it can also be used for global business management. But it is especially useful for tracking tasks of a small project. Opportunities:
- Tasks are stored in a file, they can be put in the project folder
- Ability to create projects, tags, set dates
- User friendly interface and shortcuts

Github: gists
Gists, and so in my opinion, are the best place to store pieces of code. But with the plugin for Sublime, they become just deadly. You do not need to go to the site, you can create and download histories directly from the Command Pallete.
For all this, you need to install the Gist plugin and give it a token from the github. As elsewhere in Sublime, there’s a fuzzy search for histories!

Conclusion
Use the different features of Sublime. It was created as a Swiss knife and perfectly performs this function!