Later, after you have produced many slides, it get harder. Finally, can you actually use your design elements to produce slides quickly and easily. Once you have some good design elements, you can shift your focus to production efficiency. Use Tools for Consistency Good design means that you will likely use many of the same elements over and over on your slides. This includes things like where your slide titles will appear and how they will look.
Bullet lists are another often repeated element.
Get used to copying these elements and pasting them into new slides. Then simply modify them in their new location. In this way, you'll have these elements placed in the same location, slide after slide. You can also use the Format Painter to make sure that some of the appearance characteristics are the same without having to make lots of menu changes. If you are going to distribute your slides as handouts, make sure that you test your slide design on the printer you will use.