That's brilliant new Helen.
I wonder if a separate thread announcing it might be a good idea. I've been reviewing my potentially auctionable items this week and now the buyer no longer pays postage I came to the conclusion that more money would be raised if I just donated what it would have cost me to post the smaller value ones without actually bothering to put them up for grabs. This news changes things.
It also means I can make use of the boxes I've been collecting.