You can hold the parcel in your hands and try to guess what is hidden underneath the well-sellotaped seal.
You can feel the envelope's bubble wrap and soft inner lining move around the item it has fought to protect on its long journey.
The excitement draws your fingers under the sellotape - you feel the stickiness of the glue, and tear open the seal.
It's like a cave, in the envelope, and your hand dives in to bring to your eyes what your hands and mind could only imagine and speculate.
If that undiscovered object of excitement is a vintage bag from the roaring twenties, the envelope has done its job well, oh joy to the vintage bag!
The brown envelope now lies on the floor. Its job is done.
*To those who do not know, I collected another one to my twenty years at the end of March
**Note: this iPad is not mine. It is my Nanny Wolfe's. Quite amazing.