Oh here's another handy one I made... once again one I'd consider a must have for summoner:

/macroicon "Sic" pet
/pac Sic
/pac Obey

This is especially handy with Titan.
Sometimes you want your pet to attack first, but you don't want it to auto attack and blow it's skills.
This makes it so your pet will attack your target but stay in the "Obey" stance for using skills.

To be honest, I think an "Attack" button like this should have already been made on the pet bar.