We used to see a little wooden box with a flap lid hung at the house gate. They were to receive delivery of milk bottles. It was a regular sight at anywhere until some decades ago. Such box can be still observed though with much less frequency and now it's made of plastic. Earlier than 1970's, milk used to be a drink to be delivered to home not to buy from the supermarket. Very early in the morning, milk packed in classical glass bottles are delivered by bicycle before -- now by car. Because of the delicacy of the ...