When my sister died, everything she owned got thrown out or donated. It made me look at all my "stuff" in a new way. So now, I don't buy anything unless I truly need it. I wear out my clothes before buying anything new, if even then.
Do you really NEED something, or merely WANT it? Think first. Go through all your stuff and donate or throw out what you don't need. I pretended I was someone cleaning out my stuff after I died, and I got rid of so much useless stuff. So freeing! and not as morbid as it sounds!