1) The whole "buy local" foodie movement makes no sense. Some places simply make things better than others--who wants a Michigan orange or Maine beef or an Indiana lobster? Safe and inexpensive transport has been a blessing.
2) Tourons crowding around the tidal basin to see the cherry blossoms should note that there are cherry blossoms all over the city and suburbs. They can avoid the crowds by walking along the median of I-66.
3) The new Metro system map has blank, empty circles for the stations on the new Silver Line (left side of the map). Am I alone in thinking this is absolutely pointless? What reader is going to say "hey, there will be stops somewhere northwest of Falls Church some day! I have no idea where those stops will be exactly, but hey!"?
4) Somewhere, there must be a driving school that is teaching people that "when someone is trying to merge into your lane, speed up because the high likelihood of a serious accident is a small price to pay to save yourself one car length."
5) There are still people out there that do not see a connection between regulations and policies that make it difficult to build more housing in a given area, and the extremely high housing costs (in rents and sales) for that area. Unfortunately, these people all happen to run big city governments.
6) Dark chocolate dessert pizza should really be a thing. And yes, I'm sure it exists somewhere, but that doesn't make it "a thing"--it should be available on every street corner. I'm not saying all the world's problems would be solved with such a concoction, but we won't know for sure until we try.