I only have about a half of a clue what I am doing, but I've been trading quite a bit for the last 2 1/2 years. Mostly I stick to big dividend, known-to-me companies that "feel right" to me. Some high growth tech companies (I bought both Google and Apple in early '09 when they were on sale - go me

.) I still own probably 90% of every company I've ever bought.
And I've dabbled in penny stocks a bit, just for the trill of it. As I was telling people at Thanksgiving: "It gets me out of bed in the morning!"