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Calendar chaos? It can be fixed.

Use cases, know-how and how-tos for anyone who works with several client calendars: less hassle, fewer mistakes, protected data.

Cover image for the article Use case: IT contractor with three corporate calendars, Calendar Butler

November 7, 2026

Use case: IT contractor with three corporate calendars

Three corporations, three IT policies, three calendars, and nothing may be synchronized. A typical working day of an IT contractor with the Calendar Butler.

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  • Use Case
Cover image for the article Use case: interim manager with two mandates, Calendar Butler

November 5, 2026

Use case: interim manager with two mandates

Two mandates in parallel, two clients who rely on your availability, and neither may learn about the other. A typical day with the Calendar Butler.

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  • Use Case
Cover image for the article The client name in the appointment subject is client data, Calendar Butler

November 3, 2026

The client name in the appointment subject is client data

A subject like “Project Phoenix, Hansen Engineering” reveals your client relationship to anyone who sees the appointment. Why the subject deserves protection.

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  • Viewpoint
Cover image for the article “I only show free or busy”: why a forwarded invitation still exposes data, Calendar Butler

October 31, 2026

“I only show free or busy”: why a forwarded invitation still exposes data

The other calendar only says “busy”, yet the forwarded invitation still sits there. What is stored in the other company’s system and who is able to read it.

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  • Know-how
Cover image for the article Your calendar is your delivery promise, Calendar Butler

October 29, 2026

Your calendar is your delivery promise

A double booking costs your client time and trust, not just your nerves. Why your calendar is a delivery promise and what makes that promise reliable.

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  • Viewpoint
Cover image for the article What an ICS file contains, and which data you hand over with every invitation, Calendar Butler

October 27, 2026

What an ICS file contains, and which data you hand over with every invitation

Behind every calendar invitation sits an ICS file with far more data than the appointment shows. What it contains and why a block is enough for your other calendars.

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  • Know-how
Cover image for the article Why corporate IT is right to be stingy with API access to its calendars, Calendar Butler

October 22, 2026

Why corporate IT is right to be stingy with API access to its calendars

Anyone who asks for API access to a corporate calendar asks for more than they need. Why IT is right to say no, and what is enough for availability.

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  • Viewpoint
Cover image for the article The best time management method is a calendar you don’t have to maintain, Calendar Butler

October 20, 2026

The best time management method is a calendar you don’t have to maintain

Eisenhower, Pomodoro, ALPEN: every time management method assumes a calendar that is correct. Why maintaining it by hand is no longer normal with several clients.

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  • Viewpoint