Reuse, re-purpose, recycle, donate, and do you really need that new shiny. This is a good article about lowering waste and consuming less. I have always done this as much as I could. The exception is my pc I use for gaming and even then I only upgrade components and reuse as much as I can.
I find shopping in my house to be fun and damned cheap...move, repurpose, maybe paint or sew on a border.....