When I first moved out I carried a suitcase, only. I was a student, didn't have a lot of stuff, plus my plan was to stay out of the country for only a year and go back to Brazil.
As it goes you collect things, it's normal, but it's not necessarily good when you decide to move again. We went from a 4 bedroom home in Northern Virginia, (which was not fully furnished, by the way) to a 3 bedroom house in Lincoln, England (sq footage wise, much smaller), then to a 2-bedroom flat in London, England (smaller again). In each move we got rid of things, by that I mean, a lot of stuff. Even so, our flat was jam packed. Seriously, it always felt crammed, packed and messy. You know, junk that you carry around, that you keep in your closets and don't ever even look at it until you are moving again. Or worst yet, you don't move, and you keep all that stuff and then you die and your kids and relatives need to deal with all of your things, throw/give away or sell.
What's the point, I ask?
It makes us feel better. There are so many gorgeous things out there, we want it all.
I've come to a solution that has been working for me to just really try to keep the essential. I don't mean that I have one vast space in my house, but I've decreased immensely the amount of things we collect. It's hard with a kid who loves stuffed animals (dust central) and every other toy in the world. She LOVES collecting, it drives me crazy.
After living in London, where space is at a premium, we learned. I'm not attached to too much stuff anymore, I used to be, but no more. I'm attached to my family, friends, and the basic. I've tried to get my husband to get rid of all of our dvd cases, but he wouldn't go for it. He likes the cases for some reason.
ps- The images above were taken from Google images. If anyone knows who it belongs to, let me know and I will give credit.