For the Emacs users in the house

gistfile1.el

;; Lets you insert a lambda using C-' l
;; Got the idea from Tim Bray, hence the name. Would be better as a minor mode or
;; something but I'm lazy and this works.
(defun braysian-insert (c)
  "Inserts a special character."
  (interactive "c")
  (let* ((braysian-insertion-map '((?z . #x200b) ; zero width space
                                   (?S . #x2018) ; left single quote
                                   (?s . #x2019) ; right single quote
                                   (?' . #x2019)
                                   (?* . #x2022) ; bullet
                                   (?. . #x2026) ; horizontal ellipsis
                                   (?D . #x201c) ; left double quote
                                   (?d . #x201d) ; right double quote
                                   (?i . #x221e) ; infinity symbol
                                   (?m . #x2014) ; em dash
                                   (?n . #x2013) ; en dash
                                   (?H . #x2011) ; non-breaking hyphen
                                   (?h . #x2010) ; hyphen
                                   (?l . #x3bb))) ; lambda
         (ucs-code (cdr (assoc c braysian-insertion-map))))
    (when ucs-code (ucs-insert ucs-code))))
(global-set-key (read-kbd-macro "C-'") 'braysian-insert)