Today’s featured promo on MacUpdate offers Mental Case for US$14.95 (48% off, retail $29). “Mental Case is many things — a drop box for your thoughts; RSS for your head; an index of your knowledge — but ultimately, it’s just a fun way to remember stuff. And ‘stuff’ can be anything, from your new mobile phone number to the Presidents of the United States. Mental Case can even help you remember to stick to a diet.” Mental Case requires Mac OS X 10.4 or later.