I just wrote an article for eHow on the correct method of packing an anchor chain. This is really something you want to get right the first time, because you won't find a fouled anchor chain until the very worst time possible. When you're trying to shoehorn your boat into a crowded anchorage, you don't want to find your anchor chain and/or rode jammed up. Here is the best way I've found to keep everything running smoothly in your anchor locker:
Process of Packing an Anchor Chain
Anyone care to share an anchoring horror story or two?