If I'm going to perform a card trick (Which is pretty rare these days) it's usually FASDIU.
I used to do a trick called PreCannibal Cards I believe. I learned it at my magic club in Fresno and then RealityOne helped me locate the name of it. I also used to do a couple routines by Tony Chang, though I can't recall the names - One where the deck seems to be all double-backers, then you convert them to normal cards, and I would go from that to another one where the Joker transforms into a selected card and then back into a Joker.
Card To *location* always gets a good reaction when done well. ie: Card to Mouth, Card Under Glass, Card to Pocket, etc.
When I'm just messing about with card tricks I'll usually just jazz it with a combination of culls, top control, bottom control, palm, and multiple lifts/turnovers. One of my old go-tos was having a card selected and stealing it out of the deck, then "revealing" the wrong card and when they said it wasn't right I'd ask what card they actually get and then say, "No, that's impossible, what card did you really select?" There's a bit of back and forth on that vein for a moment, then I say, "No, it can't be that card, because I always take that one out of the deck. See? It's in my pocket" and reveal it from the pocket.
Oh! And another routine that's fun is by Greg Wilson. I believe it's called Revolver (not to be confused with the color change of the same name). However you will have to make some adjustments from the instructions as I recall them being incorrect - if you follow the video exactly, the trick doesn't work, but you can figure it out.