I have been packing my bag for two weeks now. Lol. I thought I was all set to go but I would have been pantless, shoeless and also smelly in Melbourne cause I only packed all my t-shirts and blouses. At first I was so proud that my bag had a lot of space left after I "finished" packing but now it's too full. Anyway I found some awesome zip lock bag where you put your clothes inside and zip it up. After that, you roll it to remove all the air inside. It really works although my clothes look like some kind of vacuumed packed meat but I have more space in my luggage. I got some pictures of my packed bag and that vacuum thingy. Lol.
The Vacuum Bag for clothes.

Look a bit like the charcoaled fire pork aka Long yoke also known as daging salai in BM.
My luggage bag (: