How to handle a family member getting angry when I can't locate things that she wants?

My aunt is in a N.H. for rehab after hip surgery. When she requests specific items from home (like a certain perfume, piece of clothing, jewelry, etc.), sometimes I can't locate them or I bring what I think she wants.If it's the wrong thing or I am unable to find the items she gets upset with me and complains. It happens when she is home, too. She may describe "the blue and white shirt" but when I bring one, it's "I didn't want that one. I need the other blue and white shirt with the stripes". So now it's another trip upstairs to search again. Sometimes it's two or three times before I get it right. She sleeps downstairs in the living room because she can't walk upstairs yet. All of her clothes are kept in her bedroom.