I bought some yarn, but then I couldn't remember where the pattern was!
After three days I remembered it was on Ravelry -- when I went to check I found out I bought THE EXACT SAME YARN, same color, brand, and all, that was used for the FO -- I thought it was a different yarn and that I was guessing so I bought extra skeins too.
(No wonder I kept thinking, "I'm sure it would be pretty in this color" even though I don't normally like shades of green.

)