My Daily Planner - Organize your day with pen & paper. Free printable template.
Button for Google Calendar™ - See your daily schedule and join meetings in one-click.
Amazing Marvin - Customizable personal productivity tool
Add to Calendar Generator - Generate 'Add to Calendar' buttons for your website
FocusList - Daily planner & focus timer based on timeboxing and pomodoro
Vimcal - Vimcal is the world’s fastest calendar, beautifully designed for people who work remotely and live in their calendars.