Just wanted to say thanks for the tips ladies! I can't get him to sit on the potty either clothed or bare-bottomed...but Nai, your story intrigued me...some Thomas undies might do the trick with him. He happened to see some at Big W when I was wandering around and grabbed them off the shelf and gave them to me (in his size too, coincidentally!) That might work.

Only thing I wonder is...if I do start him straight on the loo, would it work okay for when we are at the shops etc? I have been told it's a good idea to have a potty in the boot of the car for when we are out and about. But then I guess if I am at the point where I am confident enough to take him out in his undies, then he would have the idea enough to actually consent to sit on the potty.

Oh well, I guess I'll figure it out soon enough. New baby due in 6 weeks so I'm not in a rush right now!