"You can often see trends and patterns over longer time frames that are hard to detect on a daily chart. When you look at charts, make the habit of toggling the chart from a daily time frame to the weekly and monthly time frames to see whether anything pops out at you. In addition, you can use, say, a weekly chart to confirm a new trend that you discover on a daily chart."
-Technical Analysis For Dummies (Rockefeller, Barbara)