Shot with a Nikon 24-70mm at 24mm f/2.8. To some people, that would be a big no-no to shoot fully wide angle and wide aperture. Whatever.
Once you pick up a DSLR and seen with it after a while, your friends and/or family will ask you: "Hey, what lens should I buy for <insert situation>?" and at first you're either saying "I don't know." or "well, if you're shooting this, then get that." because you either have that lens or you just saw or heard other pro photographers using them or saying to use a particular type of lens for a particular type of situation. Well, after years of my own experience, I do not believe in any other that. Most would tell you not to use a short prime lens like a 50mm for portraits (which I have done. See my wife's photo which was shot with a 50mm) and that you should use a long lens. Some say to use a 35-50mm for street photographer or else it's not street photography. I've been listening to these people for a while. Now, I think that's all total crap. You use what you have and you make it work for you. I've use anything from wide angle to 50mm for portraits. Using a wide will distort but you can get creative with that. But, I will agree it is not ideal for professional headshots. As for street photography, I just feel if you're shooting in the street, then it's street photography no matter what lens you use. Now, I may get some flak for saying that, but, whatever. Why box yourself in these rules? Photography is freedom. Photography is art. Art is subjective.
Don't be a photo purist. Be a photo artist.