It is like a massive car boot sale but without the car - or the boot. The array of things up for grabs at bargain basement prices is vast, from toys, books, CD's, designer clothes and bric-a-brac at one end to home-made cakes, jams, pickles, plants and Christmas cards at the other. Allotment owners will be selling fresh fruit and vegetables, stalls will be selling savoury snacks and there may even be a busker of two. Last year GASS attracted so many stalls out onto the street they were visible from aircraft flying into Heathrow!
You've got nothing to lose but your small change!