Damn straight! I've moved a lot too, so I've managed to keep the junk to a minimum, but even I'm trying to cut down...
Staying with my in-laws in Japan, you'd notice it's not just North Americans who have this problem... the world's number 1 hyper-consumer society is bad too, and the houses in Japan don't generally have basements, which makes for a lot of stacking.
My mother-in-law said she just recently realised how big of a problem over-consumption is... I'm lucky that I've moved a lot and figured it out at a relatively young age, I guess... hopefully I'll stay ahead of the game.
Having said that, we have two unused computers at home now that see very little change of getting any use whatsoever, and I still feel the urge to hang on to them. :)