With one click add comments to a specific email inside Gmail which are automatically visible to your team members included in the email, but not to people outside your organization.
Deltaplan.io - Deltaplan is the most efficient way to showcase your project plans to your clients and managers.
SendLater - Email scheduler for Mac Mail.
Cusdis - Open-source, lightweight comment system for your website
Wordcounter for Google Docs - A real-time word count and milestone markers in Google Docs.
Productivity.so - Shortcuts and hacks for your favorite tools
Todoist - Todoist is a to-do list that helps you get organized, at work and in life.