In the US, you can now do your address change with the Post Office online! That may be possible in Oz as well, so might be something to do before you pack up the computer. Same is true for the utilities. Many of the disconnect and address changes can be done online also.

It sounds as if Jenny O has the right, most positive mindset she could have. I'm sure she will not only be fine, but just great!

Wee bit of reinforcement for some advice already given--doing the garage in advance of moving day, as someone above suggested, seems like an excellent plan. I'm sure it could be boxed up in a weekend with enough helping hands. Then you'll only have the house left come moving day. It will give a great sense of accomplishment, keep you busy, and out of the house and the way of the bad roomies. Also, packing anything possible in your bedroom or the garage sounds good too.

As to having to get the ex to sign for a return of the bond, your idea of having the agent contact him seems sensible, if they'll do it. If not, have you another third party whom the ex is amenable to, who might be able to act as a go-between? If not, is it possible to get two thirds of the bond back without his signature (ie is the agent willing to negotiate this with you?)? I know that rarely seems possible, but unless you ask...