You have to use labels with drop house addresses. Find a vacant house near you and send it there. Pickup and go. No way to trace unless they catch you in the act at pickup. To thats how the pros do it.
The Lion does not give a fuck. Bring. More. Sheep.

I used to work in a mail sorting warehouse, I'd always hear stories that people have smelt strong weed and called the police and they find tons of it, I never smelt it myself but was always on the lookout for it, or the smellout for it i guess.
The place was full of CCTV tho due to the nature of the job so taking it for myself would have been difficult
When the ps4 and Xbox's came out I really did consider printing off some postage labels with my own address on them and sticking them over the OG label so they get sent to my house, only thing that stopped me was the thought that I could be stealing some kids birthday present!

Have you ever seen stories where some moron at the supermarket buys a box of cereal, then reports to the police he found 5 pounds of weed hidden inside? Why would you even do that? Just go back and check all the other boxes, tell nobody, get real high, enjoy.
The Lion does not give a fuck. Bring. More. Sheep.

Settle down.