For the past three years and change, Isac Walter has been wearing a different band t-shirt every single day, documenting his outfits on his blog, Minor Thread. On Monday, he reached number 1,000, and posted the above picture of every shirt he’s donned so far.

According to a blog post, arranging the tees took four days of work. And the milestone hasn’t stopped him. Here’s what he wore today.

Why? Writes Walter: “Why? “I dunno, and because I can.”

(Photos: Minor Thread)