This is a test of commonsense. Complete the next sentence:

How to sail an optimist
Obtain all of the equipment needed (a rudder, dagger board, sail, mast, boom, and spirit pole etc).
These should all come with the boat. If you are buying the boat new, a decent seller will always include rigging equipment such as lines (ropes) and blocks (pulleys).
These are extremely expensive for what they are and also difficult to assemble if you buy them separately. It is also recommended to buy a dolly with the boat as well.