Did you ever just "find" a discarded, dropped, abandoned or mislaid item of female clothing and appropriate it for yourself?
In college, one Sunday afternoon I was walking along the exterior corridor of a building that was deserted for the weekend. As I turned a corner, I spotted something on the sidewalk. It was a cute, silky little elastic-waisted floral print miniskirt that appeared to be in perfect condition. I was mystified -- why was this here? I wondered if someone had just unknowingly dropped it while hauling a load of laundry. I found it hard to imagine that some girl had simply removed her skirt in what was a somewhat isolated, but still public spot. In any case, after looking around to make sure no one was in sight, I scooped it up and took it home with me. It was clearly about 3 sizes too small for me, but the elastic still allowed me to wear it.
Also in my college years, it was not uncommon to wander into one of the laundry rooms, and find a lone bra or slip or top that was just sitting on a table. If there were no machines currently in use, and no one around, I could only assume that it had been inadvertently left behind, or abandoned. And, needless to say, it would quickly find a home in my own closet.
A more personal example....when I was a teenager, my mother for a time took in a young co-worker who was single and pregnant and had been disowned by her family. She was planning on giving her baby up for adoption, and lived with us until she gave birth. I was an only child, and as she was just a few years older than me, we became good friends, forming a lovely brother-sister type bond.
After she moved out, I was cleaning out her room, and discovered that she had left something behind. It was a simple, yet feminine little cotton robe/wrap that she used to wear over her nightgown in the mornings, pink and beige with a sort of oriental motif.
I kept it for many years, and wore it often, though it was very snug on my larger frame. It was a special thing that would always bring back fond memories of our brief friendship.