Pixie The Pixie

Pixie, the Pixie, deplored that her name
And descriptor were spoken and written the same.
She despised superfluity and superabundance; She
Disliked repetitiveness and likewise redundancy.
Each day she recited this rote, self-defeating:
"Once and for all is a phrase worth repeating,"
Which sums up our ditty and wraps up our rhyme.
For your homework now, read it through twice, one more time.