Care of Down Clothing / Bags

Just wondering if anyone has tips on care of lovely down jackets and sleeping bags that we tend to shell out small fortunes for.
One issue I've had with my jacket (about 1.5 yrs old) is small bits of down coming starting to appear along the seams of the sleeves - not wanting to pull them out, is there a way to stop / reduce this happening?
One issue I've had with my jacket (about 1.5 yrs old) is small bits of down coming starting to appear along the seams of the sleeves - not wanting to pull them out, is there a way to stop / reduce this happening?