well, I finally found THIS book:

http://www.amazon.com/Economia-Explicada-MIS-Hijos/dp/950511... I haven't really started reading it, but the prologue was entertaining!...to sum it up: the guy's an economist, he goes to his son's career day to explain what he does ....the kiddies draw what some of the parents do and, for him, they wrote: goes to the office and drinks coffee! LOL...so, he figures there's GOT to be a way to help kids understand basic economic principles...
that's it, so far...
Oh, I had a 10% off coupon!!

almost forgot about the notebooks! since we had thoe 10% off coupons, we bought some notebooks for Ale, too, for next school year (August)...we don't get sales for back to school then, because schools in ES start in January...except for bilingual schools and, commerces consider people that have their kids in bilingual schools are rich anyway and don't care about prices.... so they don't offer any sales!...I figured if I start buying some stuff now at least the cost gets spread in a couple of months, instead of being just one payment...so, I already have the backpack (remember that promo I told you about, when the store was giving away High School Musical backpacks?)...the shoes...and now 4 notebooks (it was 1 coupon per item, and we only had 5!...the book was the best deal, of course, since it was the most expensive item: $17 original price)