Simple default of drop-down listbox

[BarryC]

How Can I make a drop down listbox on a data entry form default to the last chosen entry such:

User clicks on addnew.

User picks Company Code from a drop-down list.

User finishes that record clicks add new again.

This time I want that drop down list to default to the value from the previous record so my user can just tab through the field.

[FUBAR]

Probably a better way to do this but it's the first idea that popped in my head

Create a global field (gLastValue). When the user is finished adding the new record, copy the Company Code into gLastValue. When the user wants to add a new record, copy the gLastValue into the Company Code.