I love to use the stitch combination of single crochet/double crochet to get a textured stitch.
I've been told it can get confusing when using that alternating stitch in rounds and also for color changing.
As you can see the cute little Penguins at the top left has color changes and the sc/dc stitch combination done in rounds.
I've come up with a photo tutorial as well as one on You Tube to help better understand the technique.
If anyone is still in the dark about it just e-mail me and I'll do my best to help you figure it out!