When I was going through "Learn you a Haskell...", and writing various programs with it, my first thought on the "$" operator (which basically lets you not pare

When I was going through "Learn you a Haskell...", and writing various programs with it, my first thought on the "$" operator (which basically lets you not parenthesize everything after it in an expression), was, "Why?". And then I wrote more Haskell, and found, wow, that's pretty useful... ... for writing Haskell! I've never wanted it in any other language I've used.