Access has been around a long time, and at this point in time with the experience we all have, we might think there's nothing new to learn about it.
Especially since MS seems bound and determined not to add the new features that we as devs would like.
Instead they add features for SharePoint and Azure which is not really what most of us want to use Access for.
But when you DO learn something new about Access, please feel free to chime in.
I'll go first!