For tracking my adds I use an excel file, let’s say:
“used key in adds.xls”
It is organised by 4 columns and at least 100 rows.
The columns are:
Key code, State/Country, County, Town
Why 100 raws?
My thought was that probably will have at least 100 adds.
As a result, I will use some 3 digits key codes.
Every cell on the first column has an incremented value by 1 as the precedent for not keeping manual counting of keycodes and make some fatal alocation errors.