Notice that you seem to be experiencing a pillowcase deficit in your home.
Stop in at a Big Box Store (a.k.a.: Ugh) the next time you are in town to see what they are offering.
Walk over to the linen department, find what you are looking for and hunt down the price tag.
Pick your jaw up off the floor.
(SERIOUSLY? $40 for two pillowcases? COTTON pillowcases? SINCE WHEN???)
Turn around and storm out of the store, muttering "No, no, no, no, no, no. NO. Just no." under your breath.
Drive home, thanking Heaven the entire way that your mother/grandmother/aunt/the internet taught you how to sew, and find some old flat sheets in the linen closet that you are currently not using - preferably the ones you bought at that garage sale for $1 each.
Using an older pillowcase as a template, cut out 8 rectangular pillow-sized pieces, match them into pairs (with right sides facing), sew three sides of each pair together, hem the openings and pop them right-side-out.
Do a little victory shimmy, à la football touchdown booty shake, and sing "Oh no, you are NOT gettin' my money, SUCKAS!"
Take a photo and blog about it, just because.