Everyone else is doing it!

[0 zerodogg@firefly ~]$ history | awk '{a[$2]++}END{for(i in a){print a[i] " " i}}' | sort -rn | head
279 cd
185 vim
117 ssh
75 screen
74 svn
66 wget
64 ls
60 perldoc
59 rm
58 cget