My Son is Allergic to Dust Mites, so to protect the clean sheets and pillow cases in our home I store them in Large and Extra Large Ziploc bags and seperate them out by bedroom.
There is a bag for each of my son's sheets, my daughter's sheets, and our master bed. The smaller bag is for pillow cases.
I have looped the handles through a hanger so that I can easily hang them in the linen closet for easy access.