See the example memo below. A memo is still an effective way to communicate effectively with staff. Because they are less commonly used these days - as email has taken over as the main form of modern communication - they can draw more attention.
All forms of effective communication, regardless of the format that is used ultimately leads to better teamwork, which results in generating more capital for the business.
You could make use of memo notes in order to get a message to an employee, but without disturbing them. They are ideal for short, quick messages.
To: Put recipients names here, separated by commas if there is more than one.
CC: List names of people to be copies on the memo
From: Your name
Re: Subject title
And that is it.....