Volunteered at the Station North Thrift Store located at 1400 Greenmount Ave, 21202. They needed help moving furniture and sorting through clothes. The people were friendly and nice to work with. If you go to volunteer, Chique is the man, with his little hotdog cart outside, good cheap eats.
Make sure to call ahead, I did just show up and had to wait a little bit for someone to show me what needed to get done. Tiffany was the person I talked to for community service hours (410) 230-0829.