diff --git a/init/init-latex.el b/init/init-latex.el
index a509294..fb7b08e 100644
--- a/init/init-latex.el
+++ b/init/init-latex.el
@@ -79,15 +79,23 @@
 
 	    ;; EXPERIMENTAL: unbind return - NOTE it is important to unbind <return> and not RET. If we
 	    ;; unbind RET then C-m won't work either.
-	    (define-key LaTeX-mode-map (kbd "<return>") (lambda() (interactive) (insert "\\")));(lambda() (interactive) (message "Use C-m")))
+	    (define-key LaTeX-mode-map (kbd "<return>") (lambda() (interactive) (insert "\\")))
 	    (define-key LaTeX-mode-map (kbd "S-<return>") (lambda() (interactive) (insert "|")))
 	    ;;(define-key LaTeX-mode-map (kbd "C-SPC") (lambda() (interactive) (insert "\\")))
 	    (define-key LaTeX-mode-map (kbd "M-S-SPC") 'TeX-insert-braces)
 	    (define-key LaTeX-mode-map (kbd "s-SPC") (lambda() (interactive) (insert "~")))
-	    (define-key LaTeX-mode-map (kbd "M-_") (lambda (r-begin r-end) (interactive "r") (add-delimiter "_{" "}" r-begin r-end)))
+
+	    ;; why this got dropped?
+	    (define-key LaTeX-mode-map (kbd "C-c C-.") 'LaTeX-mark-environment)
+
+	    ;; Go with strict mode
+;	    (define-key LaTeX-mode-map (kbd "_") (lambda() (interactive) (flash-hline) (message "Use C-c C-k")))
+	    (define-key LaTeX-mode-map (kbd "M-_") (lambda() (interactive) (flash-hline) (message "Use C-c C-k")))
 	    (define-key LaTeX-mode-map (kbd "C-c C-k") (lambda (r-begin r-end) (interactive "r") (add-delimiter "_{" "}" r-begin r-end)))
-	    (define-key LaTeX-mode-map (kbd "M-^") (lambda (r-begin r-end) (interactive "r") (add-delimiter "^{" "}" r-begin r-end)))
+;	    (define-key LaTeX-mode-map (kbd "^") (lambda() (interactive) (flash-hline) (message "Use C-c C-i")))
+	    (define-key LaTeX-mode-map (kbd "M-^") (lambda() (interactive) (flash-hline) (message "Use C-c C-i")))
 	    (define-key LaTeX-mode-map (kbd "C-c C-i") (lambda (r-begin r-end) (interactive "r") (add-delimiter "^{" "}" r-begin r-end)))
+
 	    (define-key LaTeX-mode-map (kbd "M-|") (lambda (r-begin r-end) (interactive "r") (add-delimiter "|" "|" r-begin r-end)))
 	    (define-key LaTeX-mode-map (kbd "M-,") (lambda (r-begin r-end) (interactive "r") (add-delimiter ", " ", " r-begin r-end)))
 	    (define-key LaTeX-mode-map (kbd "M-\"") (lambda (r-begin r-end) (interactive "r") (add-delimiter "“" "”" r-begin r-end)))
@@ -118,6 +126,8 @@
 	    (define-key LaTeX-mode-map (kbd "∨") 'insert-char-with-padding)
 	    (define-key LaTeX-mode-map (kbd "∧") 'insert-char-with-padding)
 	    (define-key LaTeX-mode-map (kbd "×") 'insert-char-with-padding)
+	    (define-key LaTeX-mode-map (kbd "⊂") 'insert-char-with-padding)
+	    (define-key LaTeX-mode-map (kbd "⊃") 'insert-char-with-padding)
 
 	    ;; Force moves around to be more “semantic”
 	    (define-key LaTeX-mode-map (kbd "C-v") 'forward-paragraph);(lambda() (interactive) (message "Command disabled")))