After living somewhere for an extended period of time you begin to take many things for granted that would be out of the ordinary to the traveler. I have tried to bring a few images together to give a feel for the types of things one typically sees around Vietnam.
Below is a homemade fan that I found at a fish shop. It was made to keep the flies away from the fish at the shop. How effective it was is debatable.
Phone numbers appearing of all types of surfaces are ubiquitous in Vietnam. They are glued (as seen below), painted, or hung on almost everything and advertise for all sorts of things.
Another thing that one often sees in Vietnam is people with deftly packed vehicles. An example is the man below who was making very efficient use of space on his cyclo (Vietnamese bicycle pedicab).