Today’s sudden visit to post office.

We regularly buy magic pot magazine from past 2 + years but suddenly today ,he coloured page for contest in Magic pot and requested me to take him to post office as he wants to send it to Magic pot.
Eventhough he does colouring but his interest is not colouring,his master plan was to visit post office as we recently couldn’t visit post office , otherwise we have regular attendance at post office.
He kept his coloured sheet inside the cover,sealed it using glue.Wrote the address with my help and was all set ready to visit post office.
He stood in queue ,waited for his turn and asked me to lift him so that he can handover the cover and pay money in the counter as it was not of his height level and has kept carefully the receipt in his bag .
This time ,his attention and curiosity towards schemes in post office..One was My stamp where our images can be printed on stamp .Secondly he showed interest in learning about postal life insurance,Sukanya samridhi scheme and other scheme.
I m thinking of better way to explain it to him in appropriate way .