I was just thinking it would be useful if Ravelry told me if I have already added a pattern to my library when I am searching patterns. That is when I noticed the little library icon next to the name. This isn’t the first time that Ravelry has foreseen a feature that I wanted. What makes matters even more amazing is that Ravelry is only a tiny team of one software engineer (note: source out of date)!! What an amazing endeavor.