Final answer:
The sentence can be rewritten with an apostrophe, changing 'Its' to 'It's'.
Step-by-step explanation:
It's always a good idea to wash your hands as often as possible.
The sentence can be rewritten with an apostrophe, changing 'Its' to 'It's'. The apostrophe in 'It's' is used to indicate a contraction of 'It is'. In this case, the contraction is used to show that it is always a good idea to wash your hands.
Learn more about Apostrophe usage in English