on Oct. 29, 2008

$ du -h --max-depth=1
180M    ./tmp
4.9G    ./cs402
360K    ./cs220
2.1G    ./cs101
1.6G    ./cs201
1.2G    ./cs410
1.4G    ./cs501
277M    ./cs502
56K     ./on_exam
108K    ./code
71M     ./obsolete
12G     .