I've Only had my Duffy since early November, but I've taken him so many places with me, he's started looking a bit scraggly & scruffy and his fur getting a bit matted. I used a soft bristle brush to de-mat and re-fluff his fur up and got pretty good results. The bush I used it actually a pet brush. Now my Duffy looks... not brand new but better than before and his fur is softer and not matted like it was.
Now if I could only figure out how to fix the popped stitch in his foot (the one that folds his toes in a bit).