You may never again mail a package without having to stand in line and deal with disgruntled postal workers and the 40,000 people in line who brought in their packages and yet forgot to bring the address to which it needs to be sent.
Anyway, with my own hopes of avoiding such issues, I planned to mail the packages I was sending from a post office I know that has a kiosk thingy where you weigh it and stamp it yourself and put it in a little barrel thingy and lift the lever and poof your package has now disappeared into the postal realm.
So I was childless for the evening and thought that the best time to do such an errand was before picking up anyone else and after my lovely dinner I headed in that direction.
I weighed each of my packages, and paid for the stamps - one which was $2 less than the other and even though the more expensive one was smaller and lighter and supposedly traveling by the same priority mail...so confusing. One thing asked me for it's size and the other didn't and whatever, the whole ordeal was fine. It asked me to make sure my package would fit in the barrel thingy and I set it in there. It did indeed fit, so I went on about purchasing my stamp.
Upon completion of the transaction, I put some extra tape on my package, because it said I had to cover any and all "other" markings. Then I placed the larger of the two packages in the barrel and lifted the lever. And the lever would not come back down. I jiggled it and whacked on it. I yelled "Curse you, Perry the Platypus!!!" Aaaaand. Nothing. I looked around, I asked my fellow late comers if they were mailing packages. They were not. I said "Good, because I think I just broke the post office, and I'm leaving before someone who is mailing a package comes after me."