Jon,
Elder argues for a "factor of five" in choosing the time frames. So, with a 5" chart, the next chart up would be the 30" chart. The 10" chart would have the 60" chart etc. This is definately a good strategy, since it is trading with the trend, and that is where the profits are.
Chico
P.S. What state are you in? I'm down here in Miami and the rain has been heavy for the past two days. We lost power at work, so I came home and watched the market with my home laptop. We may have a bottom, but I want to wait until the 30" chart crosses with the 3 and 8 ema.