A lot of times when people do marketing and they're testing things out, they change a lot of elements all at one time. They might change a photo or a headline or the body copy, whether it's for a paid ad, whether for it's an organic post or a sales page, and then when you get a really great result, which is awesome, you're not exactly sure how you got there. That isn’t going to work. You can't replicate it; you can't duplicate it. You can’t use that information moving forward. When you are testing any aspect of your marketing funnel, it's important to test one thing at a time. This way you can really get really good information on exactly what change you made that really made the difference.