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Here is a first-letter mnemonic for remembering the coordinating conjunctions in English grammar, based on an e-mail suggestion by "Carden":

Conjunctions are one of the eight parts of speech in English grammar, and are used to combine simple phrases into compound patterns. There are two forms of conjunction. Coordinating conjunctions are so called because they join units of equal status. Subordinating conjunctions join subordinate or dependent clauses to the main clause of a sentence, and include a number of "wh-words".

The coordinating conjunctions are:

... and ...		both ... and
... but	...		either ... or
... or ...		neither ... nor
... so ...
... then ...
... yet ...

The units being conjoined can be simple words or whole clauses, but must carry equal status (e.g. Fish and chips. Sunny at first, then rainy. He called, yet said nothing about tomorrow. It was neither fish nor fowl).

The subordinating conjunctions are:

after		if		when
(al)though	in case		whenever
as		in order to	where
as ... as	more than	whereas
as if		rather than	wherever
because		since		whether
before		so that		while
even if		that
except		till/until

Subordinate conjunctions join main and dependent clauses, but can occur at the beginning of a sentence or in mid-sentence (e.g. I must run in case I miss the bus. John scored after Fred crossed the ball. Whether or not he will play is uncertain. As you know, today has been difficult. After the game finished, I went straight home).