Sometimes it's something amazingly simply that changes everything. For my DS1, it was finding small pencils (golf/Argos size) that transformed writing, and with DD1 I found a website where I could print off as much wide ruled dotted paper made helping her learn to write so much easier than the notepads of early writing paper I used for my DS1 (which were only available in one shop in town that was really out of my way and quite pricey).
DS1 currently has a keep interest in Geography, so currently looking for thorough books and games on various areas (particularly British geography,which he loves, but as I wasn't raised here so anything beyond our area I'm learning alongside him) but finding nothing yet that has really sparked. Also, most books on virtues are so patronisingly dull, I'm thinking of just going through their 'normal' books and making a list of good habits and bad habits represented in them for general discussions (DS1 likes to know why doing X is good or bad and I've found stories the best way of showing it and discussing it, but it's hard to find ones that are interesting).
So what magic have you found and what are looking for?