Well, Cupid is getting ready to step up to the plate, so best to start thinking about how you're going to tell twelve people - or any other multiple of twelve - how much they mean to you. To that end I've drawn a valentine with a dinosaur on it, based on a great little one-liner thought up by my life partner, spouse, and BFF, Jennie.
but what about that odd multiples of twelve bit up above? Well, you can actually purchase this card with three other designs - by Randall Munroe, Zach Weinersmith, and Rosemary Mosco no less - in a set of twelve. So whether the objects of your affection fancy planetary physics, entomology, parasitology, or palaeontology, you are covered. Pick 'em up from the XKCD store!