Fur in general:
Fake fur benefits from regular brushing. If you fail to brush your fur at all, it will gradually become matted, until you have a felt-like mess for short furs, or a bird's-nest tangle on long furs. Once it gets to that point there's not much help for it, so keep your fur from getting nasty by gently brushing it before wearing. Do NOT brush fur every day, and do NOT brush roughly! Unlike your hair, fur fabric cannot grow back the fibers it loses when you brush it, and will eventually brush bald if it is brushed too often. But regular, gentle brushing will keep it looking nice much longer.

Fur is machine washable, but you'll definitely want to put it inside a pillowcase to keep it from tangling. Wash in cold or warm (not hot!) water on a gentle cycle. Or, if you want to be extra careful, hand wash in the sink or tub. Use a detergent meant for cold washing, such as Woolite. NEVER EVER EVER put your fur in the dryer with the heat on! Heat will ruin most fur fabrics, so if you do machine dry it, do it on a tumble-only cycle, NO HEAT, and don't use a blow dryer on high either. It's best, really, to just let your fur drip-dry.

Tails:
Tails are nothing but fur, stuffing, and sometimes a little delrin, wire, or plastic. Which means that you can machine or hand wash it, as described above. Just remember, no heat, and brush with care!

Ears:
Ears also benefit from careful brushing, but should not be machine washed. Gently hand-wash your ears in the sink and position them in the correct pose when you lay them out to dry.

Hand paws:
Once again, you may wish to occasionally brush your hand paws, and you'll definitely need to wash them, as they're going to get quite dirty from use. Handpaws should not be machine washed (you'll risk breaking claws, and not all glues used for pawpads are machine safe.) Instead, hand wash gently in the sink and let drip dry.

Feet paws:
Feet are also not machine safe. They should be carefully hand washed and allowed to drip dry. Outdoor feet in particular may take a long time to dry, due to the assorted layers of the shoes or slippers used as a base. Be sure your feet are dry all the way through before storing.

Bodysuits:
Bodysuits are pretty much just fur, so care for as described above.

Wings:
Don't machine wash wings! In fact it's generally not a good idea to immerse them at all. Spot clean with soap and a damp cloth.

Heads:
If you have one of my older heads you should NEVER immerse it in water The material used for jawsets is water resistant, but not waterproof. Getting the surface of the head a touch damp won't hurt it, but if you completely immerse your head, you will ruin the jawset. Spot clean your head carefully with a damp cloth, and do not let the gums or nose of your head become completely soaked. My more recent heads do not have this problem, and you can immerse them safely, but surface cleaning is still generally the best method.

These instructions are meant for suits the way I make them, of course, so may not apply to suits made by others, except for general fur care.