Cleaning a 100% Wool Coat at Home?

Hand wash in cool water with extremely mild detergent and not too much of that. If the garment isn't stained, you needn't worry about scrubbing, simply fill your kitchen sink or bathtub with soapy water and dip the item up and down a few times. I'd recommend the bathtub. Use your shower head to rinse the soap from the coat. Be thorough. Gently (I stress "gently") squeeze the water from the garment, starting at the top and working down. Do not twist the garment! Continue squeezing until you've removed as much of the water as possible.

Lay out several thick towels on the floor in an out-of-the-way area. Spread the coat on top of the towels, being careful to align the collar and sleeves. Smooth your hands over the entire coat to emulate ironing (i.e., try your best to remove any wrinkles just using your hands). Leave it lie overnight. Check it the following day and if reasonably dry, hang it on a good sturdy coat hanger (one which meets the should seams). Leave until absolutely dry.