If you have a calculation like

Code:
x = x + variableamt.
Fine, but it should not be used where a more meaningful variable name could be used e.g

Code:
totSales = totSales + Sale_Qty

CustName = CustName & " " & Last_Name
Just pointing out the relative merits of naming variables. We do allow "x" etc to be used as For...Next counters etc.

My $0.01c worth.