The hot summer has made this the best year ever for the grapes in my garden. I have two vines, one that grows over the summer house and the other that has spread along a wide fence. The grapes taste so sweet and are utterly delicious. A banknote collection also spreads and grows over a period of time. Slowly and steadily the number of notes increase and suddenly you realise your collection is looking very good. This is the time to think on how to develop and improve the collection by perhaps having a focus on First, Lasts, Replacements, or even the recent polymer First Runs.