I use tight stops, which I adjust daily. I let winners run, but take half off when my goals hit. I only trade from my watch list and if technicals are right. I try to avoid buying when overbought or outside channel.
I've learned the hard way...
I like to find undervalued turnaround stories that are still in the 1st or 2nd inning. I listen to the conference calls, read the quarterly earnings, and sift through the numbers (I value both fundies and technicals, as well).