The simplest way I have found to keep track of where George is spent is to place a SMALL - 1 Inch by 1 &1/2 Inch - sticky note [PostIt's type] on the bill, with the denomination and part of the serial number - enough to be UNIQUE - written on the sticky note when I mark the bill.
It is easy to quickly code where the bill, or bills, were spent. If I spend several bills in one place, I just have to write where they were spent on the TOP sticky, stack 'em all up, place it in a corner of my billfild or card case until I get home, and -voila- go online and easily edit the note for each bill.
Just a bit of preparation and discipline makes it EASY.
Does anyone else do something like this??
...The PooBear a.k.a. Tony_from_SC.