It is important to allow fabric to breathe. Take those materials out from time to time. Unwrap and unfold them. Give them some air. Then, repackage them and return them to their proper place.
Sunlight can cause materials to fade and disintegrate.
If you keep some items on display, be careful where you place them. For instance, don't place that quilt on a quilt rack under the sunniest window in the guest room. Also, if you have a colorful scarf matted and framed in the foyer, make sure it doesn't receive any afternoon sun. I'm sure there are twenty other things I could suggest. There are many sources for these items.