If you want, you can also create a raw Markdown template to use in GitHub issues, after GitHub implemented Tasks: <a href="https://github.com/blog/1375-task-lists-in-gfm-issues-pulls-comments" rel="nofollow">https://github.com/blog/1375-task-lists-in-gfm-issues-pulls-...</a>.<p><pre><code> To Do
=====
Groceries
---------
- [ ] Buy milk
- [x] Buy eggs
</code></pre>
EDIT: You could also play with the idea of a paid plan that allows users to create their own custom checklist using a select amount of your checks - possibly with the option of creating their own as well.<p>I'd consider throwing down $3 or $5 as a one-time fee, and even if the site stops working, I wouldn't have minded spending that money.<p>EDIT: Another feature could be the ability to display your own list on /user/123. It'd save me the bother of always going on about the same things, especially when it comes to accessbility.<p>EDIT: <i>Another</i> feature could be custom CSS and branding, but that could be implemented as a second tier, since other companies might want to use this for branding and PR. I personally don't care for it as a private individual.