For task coordination, A eCalandar (gCalendar or outlook) alone is often insufficient (like “2023 mortgage rate hike”) because:

• harder to search
• hard to group related items into one condensed list
• impossible to build a hierarchy of items
• hard to put detailed comments/analyses into any item

In such a situation, I found it necessary to combine an eCalendar with one or two additional tools such as blog and spreadsheet. The “leader” among them is often the blog (multiple bposts). The various tools are hyperlinked together.

— gCalendar/gmail as logbook
Background: I have a well-tested and reasonably reliable habit of using google calendar for reminders , often containing valuable details.

Q: is it safe to rely on google calendarfor permanent/immutable logbook, similar to how I used gmail?
A: it’s not strictly immutable, without version control…. but still a useful system to meet the basic needs.

Gmail is less “mutable” :), can save more details 🙂 Good complement to google calendar