One method I am using short term is pairs trading. If I enter a position and I wonder if I made a mistake, I will quickly hedge and wait. Saves getting whipsawed on stops.
So I am trading everyday, but I watch for common patterns like gap-ups etc.
I will add that my long-term tests worked about the same as my short-term tests. So my performance isn't any better than if I traded less over years tested. I just like cashing in everyday or the next day.