I flew Jetstar a couple of days ago with only carry on luggage. While I was sitting at the gate (of course the flight was delayed) the Jetstar staff announced that everyone had to have their cabin luggage weighed and tagged before boarding the flight. You are allowed a weight of 7kg for your carry on luggage. I have never been asked to have carry on weighed before, however I didn't have a huge amount in the bag so thought I would be ok. After putting my bag down on the scale I saw that it was under 7kg. The Jetstar staff member then advised that I needed to also put my handbag on the scale. I have NEVER been asked to have my handbag weighed! Of course my handbag put me over the 7kg weight and the staff member advised I would have to check my carry on. The cost for this was an extra $50! I protested vehemently to this but of course the staff could not care less. They must get abused on a regular basis as they seem totally immune to anything you say. Who weighs someones hand bag as part of the carry on weight - no airline I have ever been on before. I always avoid Jetstar whenever possible as they cancel flights at the drop of a hat and flights are regularly delayed, however after the fiasco of weighing ones handbag - NEVER AGAIN!! I then discovered on the flight that the 2 people sitting beside me also had carry on luggage which they didn't get weighed (they didn't hear the announcement) but were allowed on the flight without their carry on being tagged. A warning out there for all those flying Jetstar in the future with only carry on luggage. It is clearly a form of revenue raising!