Possession Theory
The things you own are not yours. They aren't. They belong to the Lord! You are His steward, and can use things you "own" for your own benefit, for your family's benefit, and for the benefit of others unrelated to you.
I discuss this further in my book, Better Than Feng Shui, but I want to throw this out and get you thinking along these lines now.
When you steward something, it is yours to manage, not to hoard or fret about. If there are things in your life that are causing you stress, then GET RID OF THEM. They are not worth the strain they are causing you.
I don't care if the thing is a brand new car or an uncomfortable turtleneck. If something causes you stress, it doesn't belong anywhere near you. That stress-producing object is taking your eyes off of serving the Lord and enjoying the life He died to give you.
Perhaps the things that cause you stress are stressful because there are too many of them (as in too many clothes, too many books, too many magazine subscriptions, too many scrapbooking supplies, too many cleaning supplies, too many pets, too many framed pictures to dust, too many drinking glasses). JUST BECAUSE YOU OWN SOMETHING DOESN'T MEAN YOU HAVE TO USE IT OR KEEP IT.
If you are a steward over these things, then let them go to bless someone else. Get rid of the things that are cluttering up your life. You don't have to use something up or wear it out just because you own it. Let someone else enjoy it. Bless them and free yourself from unnecessary burdens!