My dog can...
Come (most of the time, it could use more work)
Walk Nicely (while on leash)
Other Paw (gives the oppisite one as before)
Say please (sit up and beg, he likes this one :p)
Let's go in! (when your outside he'll run to the door)
Get Busy (his were not out here to play go to the bathroom command)
Daddy's Home! (hehe not really a command, but he'll run to the window look out, then run grab a toy and run back to the door where he waits for Dad to come in)