To-Do is more about solo projects, where you need to see your personal to-do list. Microsoft Planner is efficient if you need to manage a team with fewer inter-dependencies.

The strikethrough and checklist functions in Google Docs can be particularly handy when organizing tasks online. Here are keyboard shortcuts for them.

Those who can’t get in the holiday spirit can look forward to Jan. 16. That’s Nothing Day, created by columnist Harold ...