If I haven't used it in a year it goes to a better cause.
If I don't need it, get rid of it.
If I can't make good use of it, give it away.
Clean up as I go. If I put things back in their proper place, I use less time looking for things and use that time to be more creative or to relax.
Don't buy it just because I can or I like it.
I only buy quilting magazines if I really like three or more projects in it.
Keep my stash to a workable size and do not take over any other part of the house with my hobby. Keep it in the sewing/quilting area.
Just cuz it is cheap, pn sale, or I can get oodles of fabric from a thrift store/yard sale/auction/whatever, does not mean I will use it or need it.
I don't need all the gadgets and machines only what I can make good use of.
If it does not have to do with my sewing and quilting, it does not belong in my sewing area.
Hope this helps Gwyn. I'm sure I can think of more.