Post #81: Godot's Data Preferences Page
Today, there's not really a post, it's just me telling you that you should go read this page in the Godot Docs: Data preferences.
If you are doing any sort of serious or real programming in Godot with GDScript, this will help you approach the problems you run into with recommended data structures that might best solve those problems. It might also help people understand a bit more about why CS knowledge / theory is helpful in game development!
Give it a read!