Just sold something that i usually put in a 2nd class large letter and put in the letter box.The new simple delivery has taken over and it is now a tracked 48 hours for a item up to a kilo.The item weighs under 100g.Not to worry i think to myself.It says Royal Mail drop off.Does that mean i have to take it somewhere or can i just put it in the letter box like i always have?I'm in the middle of no where and i am not traisping on a 12 mile round trip just to take something worth less than £20.Many thanks