Me, I started off with Tarot. Did loads of Tarot from ages 16 to about 24. But as I worked with them more and more, I started having greater and greater difficulties with some of the concepts embedded in them. Many of these concepts are medieval, Christian, or otherwise anathema to me; some are simply ontological disagreements. But either way, Tarot no longer works for me.
I generally say that I'm currently "in between divinatory systems", much like someone might be "between marriages". I have violent disagreements with Western astrology (and it with me). I think numerology is just plain silly -- it's too mechanistic to adapt to he fluidity of the actual world. I never quite got into runes or Ogham, though I really should give Ogham another try, I suppose. My attempts at scrying have gotten me precisely nothing.
What sorts of stuff are other people using?