Rob
We never go to the Post Office. Mail is collected and delivered to us, and stamps can be also be ordered from the postal carrier and delivered to our mail box.
Packages need to go to the Post Office to be weighed, the contents declared, and the customs forms filled out. We tried to do it through the postal carrier but it doesn't work.
A Post Office is something out of a Monty Python skit, you need forms needed to fill out forms. We even have packages returned to us for not having the right amount of postage on them when we took them to the Post Office to be mailed in the first place.
Even when we prioritize customer service in our business model, time is still money, and lost time can never be regained.