P&G Nano in a place you might expect. BYOP. PLEASE do not park on the street; it's a really busy street. Also use great caution in finding the cache, especially if you have kids along (not recommended for this one!) as it is a really busy street. Much stealth also may be required, for the aforementioned street is, in fact, really busy.
When Mama CatLemur was a small child, she used to see signs advertising Xings everywhere, but she never knew what a Xing was. She tried asking her parents, but when she did they laughed so hard they just couldn't answer her. There seemed to be all sorts of species of Xings, such as RR Xings, Deer Xings, and Ped Xings.
These days, it's harder to spot a Xing advertisement in the wild. It seems now there are signs with pictures of people, animals, or mechanical devices on them in the places where the Xing ads used to be. Every once in a while, though, you'll spot one...
This one is recognizable as a Xing advertisement despite its odd, interruptive punctuation. The cache is on the ad itself.
There is metered parking very close to the cache next to the closest building on the Iowa State campus.
Congratulations to Nannytastic for the FTF!