How many earrings is too many?

Quick backstory -- I had a LOT of ear piercings as a teen... 3 in each lobe, and a few cartilage in each ear. I let most of them close up in my adulthood, and now just have 2 lobe piercings in each ear. But lately I've been thinking about getting another ear piercing but not sure which. Lobes are easy/heal quickly...but is 3 on each ear too many? Should I just get a third in one ear? Is that cool? Or is less more?