'Learnsomethingeveryday' is a sweet little site that lets you do just that, nice lil illustrations (printable on American Apparel t-shirts no less). I know it's not Valentines day yet but thought i'd put this one up so that I don't get any flack for being a cheesey turd for posting this on the 14th... and I think it's purdy...
Take some days off to look through the back catalogue and then bookmark this pearl of a site and keep up to date with useless information... here it be.