I used to use ~$1.50 light-weight cubes but I got sick of the dull colour and spoilt zippers so I bought some proper Eagle Creek cubes (which will weigh a bit more) and I'm going to gift the old ones to a friend who does not mind.

I cannot do with the concept of the 'one bag' because of the purse I carry. I need it for the flight and as a day bag at my destination. It never goes into my carry-on. I can get away with it because airlines think that females need their purse My carry-on has never been stopped to be weighed on any of the airlines I travel with so that's a bit of a luck (I tend to check it on budget airlines because I shop more on shorter trips?).

14 lbs is about 6.35 kg, which I'm still unable to achieve. Right now my luggage hovers around 7.0 kg during summer travel (this includes my 3.5lbs or 1.6kg Mei Voyageur), which is way more than 10% of my body weight. But as I always use the very useful waist strap, I could always carry up to 8.5kg without feeling the strain. More than that and I start to get a little tired.

I think I may have met my comfort level but my back has not been happy.