I often take in parcels for 3 of my neighbours opposite myself and the next terraced house to me (my dm, I'm end of terrace).
Then will often drop them over to the neighbour when I can see they are home later that day or the next.
The neighbour I have taken parcels in for this evening is my next door neighbour the opposite side to my dm and we have 3 garages between us, so I can't see if they are home without walking to their house.
I have taken in parcels for them twice before in the past and the first I had just moved in and the delivery driver had a small box with him so though ok what's the harm, good way to meet said neighbour, until after I agreed he went down to his van and pulled out 5 large heavy boxes which had labels saying Garden table, chairs and a trellis.
I ended up knocking at their door for over a week before they answered (car in drive, lights on, dogs barking each time) and left a couple of notes saying I had their parcels. Eventually they answered and got a bit huffy when I asked them to collect the heavier boxes even with my dd who was 18months at the time in my arms.
Second time was again me knocking for days until they answered.
I'm a sahm doing an OU course so I'm home most of the time so I can't see that they have even tried in the past to collect their parcels or have only knocked while I have been out.
So before I ramble on any further I'm thinking I'm not going to bother knocking for days on end until they answer but let them come and get it themselves. I know they have a note to say where they are as the driver often delivers my own parcels and have never had problems.
And I'm kicking myself for saying I would take them in!