It is not so simple.
Even with eons of writing experience, I doubted I could put together coherent content without using one specific letter in the entire piece of work.
Yet, this piece shows it is possible. It was written entirely without using the letter ‘A’. I further opted to heighten the difficulty by not to use shortened versions for common expressions or idioms).
I did find it to be tough. It took longer to write it too. Sentences were reworked multiple times. Different words were sought out to use in lieu of ones I commonly relied on without thought. Once done, I still felt it possible to improve on it, so I did more editing.