First time living alone, any tips?

I’m (28M, Dutch) moving into my first place on my own soon: a 36m² studio in an apartment building in Amsterdam.

I’ve already got the obvious stuff covered, but I’m curious about the things you only learn after living alone for a while.

Are there any non-obvious tips, especially purchases, habits or things you wish you had known before moving into your first apartment/studio? Things that might seem small, but ended up making your life much easier?

Would love to hear your experiences!