Richmal Crompton 
Just William [EPUB ebook] 

It all began with William’s aunt, who was in a good temper that morning, and gave him a shilling for posting a letter for her and carrying her parcels from the grocer’s.
‘Buy some sweets or go to the Pictures, ‘ she said carelessly, as she gave it to him.
William walked slowly down the road, gazing thoughtfully at the coin. After deep calculations, based on the fact that a shilling is the equivalent of two sixpences, he came to the conclusion that both luxuries could be indulged in.
In the matter of sweets, William frankly upheld the superiority of quantity over quality. Moreover, he knew every sweet shop within a two miles radius of his home whose proprietor added an extra sweet after the scale had descended, and he patronised these shops exclusively. With solemn face and eager eye, he always watched the process of weighing, and ‘stingy’ shops were known and banned by him.