Not anymore.
Let me be honest with you: I'm against swearing in general. Yes, I know they're words with definitions, and that they're Anglo-Saxon words that the French found "dirty" and "of the commoners", but these days, they've been degraded to something down-right disgusting. The "F" word came to being because it was short for the name of a felony that a prostitute was known for back in the day (and I can't think of the felony name at the moment, but if you were to look up the origins of the "F" word, you may run into it).
Another example: in seventh grade, my math teacher went on a rant about swearing, and he said that if you call someone a "f*g", you're calling them a bundle of sticks, because that's what the word originally meant. It was the most interesting hour I have ever had that whole year.
Anyhoo, I won't lie when I say that sometimes my parents swear, but it's only because they get frustrated at whatever we do that was really stupid. They hate swearing, and though they have controlled themselves over the years, I remember hearing my parents swear no harsher than the "s" word quite often, we were dumb kids. In fact, there was a period of time when I was young where I saw swear words as just words. I remember saying "bullsh*t" twice in front of my friend when we were talking about boys, and she was shocked I even knew the word.
Nowadays, if I find it appropriate (which is rare), I'll say "bastard" or "slut" depending on the context of whatever conversation is going on. Because honestly, "bastard" is the most common word my mom will blurt out when talking about our family history. Because we're a bastard family... in a sense. (And Mom agreed with me when I jokingly said if we were sluts because of it, because I was sure that's what the female equivalent of "bastard" was.)
And of course, I have put swear words in my stories, but I do not say them out-loud. I find cussing stupid, annoying, and it makes the person seem unintelligent even when they actually are smart.