Going down to play on what I always understood to be a an old bomb site (probably wasn't) between Salmons in Patcham and Overhill Way. Now houses. Not many bomb sites left for kids to play on in England now!
Carefully extracting cards from between the lining and the wrapper of loose tea packets of trees, birds, animals, wild flowers and the like. Then carefully gluing them in to a Brooke Bond Tea album or taking them to school for swapsies.