Your cutting board takes a lot of abuse from a knife. Protecting your cutting board is important for the life of it.
Protect your wooden board, by washing wooden boards with some soap and water, rinse in hot water, wipe clean, and allow to dry upright.
To maintain the sheen, every few weeks depending on use, sprinkle coarse salt over the surface of the board. Rub it with sliced lemon, then rinse well with hot water. This will help get penetrating oils from vegetables, fruits, and meat out.
Once a month, apply a small amount of mineral oil with a lint-free cloth in the direction of the wood grain. Be sure to stay away from olive or vegetable oils, as they turn rancid quickly. Reapply the mineral oil, until the wood stops absorbing the oil. Wipe off excess and dry the cutting board overnight.
Mineral oil can be found in many places. Try your local hardware store, kitchen department stores or shop online!
I hope this tip keeps your kitchen gear in pristine condition for many years to come.