Most television commercial makers specialize.  I found by being my own cameraman I was able to make a wide variety of little films.  You can see this in the other reels.  Most enjoyably I worked with children.  There is always a feeling around child actors that they're being exploited.  Keeping the parents as far away as possible, we tried to make a game of it.  My younger daughter once worked in a commercial for a famous director and thoroughly enjoyed it, constantly referring to him as "my director."  Many of my commercials were made before video monitors were common.  My clients had to take my word for it that the shot worked.