drawstring bags

Have I mentioned that I made a ridiculous number of drawstring bags for my daughters to organize their "stuff" this summer using a fantastic tutorial by Svetlana? So, my question is why, when my oldest daughter needed one for school yesterday, did I have to give her one of mine?!?!?! My suspicion is that my two youngest decided to keep these all for themselves - I guess I'll be going on a scavenger hunt later today!