I live in a very dusty environment: sandy soil. Even though we have a very expensive air filter, it doesn't help. So, I keep most of my "pretties" behind glass in a cupboard or frame, or hidden away to look at another day. I have a lovely wool-on-wool cat that has stayed out for a few years, now, and it is looking pretty sad with all the dust. Can't be washed. It will just sit out until I can't stand it anymore. Vacuuming doesn't help much.
Interestingly enough (along the lines of hidden treasures), we visited my in-laws this summer and I have sent her several embroideries through the years. I was utterly shocked to see a hand-sewn tea cosie with raised monogram and drawn thread tucks on top of a shelving unit. I asked mother-in-law where she got such a lovely piece. It was beautifully stitched and embroidered. She replied: you sent it to me for Christmas a few years back. I knew it had been a rough few years, but I didn't realize I had gotten *that* bad! I have absolutely no recollection of making it.
Dianne