Agreed.
Quite a few times when doing circuits on 17L/35R I've had to do a go-around for one reason or another....sometimes it's difficult to get the call in with so much radio traffic when it's busy.
On 17R/35L, if the tower hasn't given me a clearance, I give a call on finals if it seems they've forgotten about me.
As for my last go-around, that was yesterday..