Sorry for the meta nature of this comment, but Pyjamas have been in my bookmarks for so long and I never really got the gist of it. With the first paragraph in

Sorry for the meta nature of this comment, but Pyjamas have been in my bookmarks for so long and I never really got the gist of it. With the first paragraph in this article, I finally "got it". This is the kind of golden stuff I love to see in HN, so please keep 'em coming!