Knowing where I spend my time, and the things I use in those spaces have helped greatly to keep my possessions at a minimum.
I know in the living room I like my space. I know I always have a drink, a laptop, a couple game controllers and dvd remote with me. I usually eat here to watch a show, so I also need room for a plate. I found that the best multitasker for being able to kick back and relax, use the laptop, or lay on my back and read is a couch. So all living room chairs went. Just one couch, with a table at either end.
At the TV, I have that, a DVD player, a few game consoles and games. I found that I can have a hefty PITA entertainment center, or mount the TV to the wall and mount shelves to handle each accessory and associated DVDs/games with bookends. So much less space and shelves are just stupid cheap over a full entertainment center.
I just go through the house and decide on what I can get away with in the most bare fashion possible. I am mindful of these questions:
What do I use a space for? How can I accomplish this with the least amount of furniture possible?
Where can I get rid of bulky storage where shelves will do instead?
What do I use frequently enough that I need to find storage for?
What do I use rarely enough that makes sense to hide away in the garage?
What do I keep around thinking that someday I will actually use this? Does it cost more to replace these items if I toss them, or does it cost more for the amount of square footage and storage space I need to keep them?
Are there better alternatives to keeping these items? A Kindle app or ereader or computer can replace most books and cookbooks. The same with an HDMI cable, or smart TV can replace a cable box with subscription services. Some hardware stores let you rent tools and lawn equipment. Some chain auto stores will let you rent tools too. Libraries can replace book and DVD collections.
By being mindful of what I really use, and knowinf what my alternatives are to keeping items, regardless of the house size I've been in, I can move everything with a fourteen foot Uhaul.