I have a car company
I have 24 cars.
Car A, B, C, D, E, etc
I wash two cars a day.
I don’t want to wash a car that I washed 7 days ago or earlier
So for instance, I wash car A today.
That car should not been washed yesterday.
I need Numbers (spreadsheet) to help me notify if I am about to wash a car that has been washed before by someone.
I have a spreadsheet of all the 24 cars I have.
And I have a spreadsheet in which I enter the cleaning rows/records of a car.
And it’s that spreadsheet that should have a column to say, that I already cleaned that car 7 days ago or earlier.
I have seen many tutorials of Numbers and Excel but still no tutorial on what I call date space. i really need it for a car company I work in to do my job better.