How to spell OPTIOINAL correctly?

If you're constantly making the typo "optioinal" when trying to write "optional", here are a few tips to help you correct it. Firstly, remember to include the second 'i' after the 'o.' Alternatively, you can try breaking the word into syllables - "op-tion-al" - to remember the correct spelling. Reviewing similar words with 'tion' endings might also provide a helpful reference.