We stopped at CVS on our way home from Target this morning, and they had a shelf tag for the Band Aid blister stick. There are 2 more CVS's near Princess's house so we hit both of those and managed to find one stick.
I realized I had been carrying the car payment around in my purse since Friday, so we went by the post office. There is an independent pharmacy in that shopping center and they had a whole peg full of blister sticks!

I bought 2 more, so the 3 new ones combined with whatever is left of the one from last year should be fine.