DS1 is in Reception, so I am new to the school thing and unsure of the etiquette...
He has received about 10 cards so far from other children, not all from the friends he plays with, a couple not even in his class. Do some people send cards to all 30, or even 60, children in their children's year? Or is he just popular 
Should he give in return to everyone who has done one for him? Or is it ok to just do a few for his close friends (hopes - struggling to get the essential ones done).
Thanks for any guidance and would like to hear other's stories on this...