Anchors and chain are expensive. Extend their lives by washing your chain and anchor with fresh water after every use and, if you can, store it dry. If you don't have enough fresh water aboard, rinse it every time you return to the dock. Periodically remove all chain from the chain locker and clean salt and mud/sand from your locker with a thorough fresh-water rinse.
We see too many rusted anchors and chain links on vessels, and a few extra minutes of maintenance can save hundreds in future maintenance dollars!