When I add stuff to my calendar I like to not only color-code similar events, but have a specific pattern for special notes in every title. For example, instead of writing “Friend Hangout” I’ll write “Friend Hangout {Bring Food} [Isaac] (Luigi’s Pizza)” so I can easily check what an event is, special notes, who, and where without needing to remember anything or even needing to look at the calendar notes to see it all!! Normally I only use the () to show the location, sometimes I’ll use [], and