I volunteer at a homeless shelter and we have a giveaway room where people donate clothes and we give them away. If a cotton shirt is in there for over 3 weeks, I'll usually take it home, we get some seriously unusual shirts sometimes. People donate a lot of long sleeved dress shirts and they rarely get taken because the average homeless person is looking for flannels and sweat shirts at this time of year and in the summer they look for t-shirts and short sleeved shirts.