If there is such a thing as "normal" then the normal way of addressing the used cells to the right of A1, including A1 itself, would be this:-
Range(Range("A1"), Cells(1, Columns.Count).End(xlToLeft))
The basic syntax is to define a range by its first and last cells, here perhaps Range("A1", "G1"). The term Cells(1, Columns.Count).End(xlToLeft)
uses the syntax for defining a cell by its coordinates, like Cells(1, 7) for G1. Cells(1, Columns.Count)
therefore defines the last cell in row 1, No. 16384, that is cell XFD1. .End(xlToLeft)
instructs to move left from there to the end of the used range and return that cell. In my example that might be G1.
The code below puts the method into context.
Dim MyRowRange As Range
Set MyRowRange = Range(Range("A1"), Cells(1, Columns.Count).End(xlToLeft))
Debug.Print MyRowRange.Address
Observe that you not only have the address of the range but the range itself, too. You can colour it yellow or you can set the value of any cell in it.
MyRowRange.Interior.Color = vbYellow
MyRowRange.Cells(3).Value = "C1"