Reserved s-= for my-calc-line (to avoid excessive typing of M-x my-calc-line). er/expand-region is now s-w to be near C-w/M-w.
((emacs-lisp-mode . ((page-delimiter . "^;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;\n")))
(sh-mode . ((sh-basic-offset . 2)))
(text-mode . ((fill-column . 80))))