acting classes NYC know that an actor's voice is one of his most important tools. Like any tool, it should be well-maintained and cared for, and wd-40 is not what is needed to keep your voice and articulation smoothly operating. It is essential that actors warm up their voices and practice perfect articulation and speech, ideally as an everyday practice.
Here is a great articulation warm-up from that doctor of tongue-twisters, Dr. Seuss:
Give me the gift of a grip-top sock,
A clip drape ship-shape tip-top sock.
Not your spinslick slapstick slipshod stock,
But a plastic, elastic grip-top sock.
None of your fantastic slack swap slop
From a slap dash flash cash haberdash shop.
Not a knick knack knitlock knockneed knickerbocker sock
With a mock-shot blob-mottled trick-ticker top clock.
Not a supersheet seersucker ruck sack sock,
Not a spot-speckled frog-freckled cheap sheik’s sock
Off a hodge-podge moss-blotched scotch-botched block.
Nothing slipshod drip drop flip flop or glip glop
Tip me to a tip top grip top sock.
Practice saying this 3 times fast!