Make sets of charts whenever possible
Similar to the message in the Chart of the Month this month (Chart of the Month August 2014), it's a good idea to create series of slides that have the same layout and elements when they are a series or connected in some way. These sets make it easy for your audience to maintain a running connection to an overarching message. Remember to make it easy on your audience to absorb your message by using techniques like this. They will understand the message quicker and remember it longer.