Triplepack,
In the current climate, I'm taking quick early moves, but they sometimes become much larger moves. Often the market, as you suggest, chops around for several hours or the rest of the day.
However there are often opportunities later. This evening I took a very small profit on AMGN and a much better one on QLGC.
As I said the opportunities are usually there, sometimes it's dead easy like taking candy from a baby, other times you've got to work hard at it.
Having said that, if you really can't find anything, walk away. The market is always there tomorrow.
Looking at your last comment, I have to say simply playing off support/resistance in this type of market is, imho, a losing strategy as it is whipping around.