Adds a little more luxury (and practicality) to an already luxury-item - Exped AirPillow Case

Pretty simple here: Easy to install, and makes the pillow even more comfortable. Also, I know this is something that I can throw into the wash when I get back from a trip, and once washed, it will be fresh and ready to go for the next trip.
Only negative is that it does add even more bulk to a luxury item, and there's not enough space in the stuff sack the pillow comes in, so there's a storage issue I'm still trying to figure out. So, one star deducted for practicality. Other than that, a great item.