A clove hitch can also be looked at as two half-hitches
tied around the post, instead of the attached end of the
same rope. Clove hitches are often used to start a
lashing.
An ASCII art rendition:
#########
#########
#########
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______ ___
/ \/ \
\____ / _/
__________________ \/ /
\/ /\______
________________ / / |
\/ /\________|
_/ /\____
/ / \
\___/\______/
#########
#########
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A good hitch for tying a boat to a pier might be
the mariners' hitch.