Here is another version of a Crochet Bright Zig Zag Afghan. There is a repeat pattern that appears to be easy to follow. From regular zig zag look to having some stitches to be splayed out for interesting visual effects
You can change the colours to suit your lifestyle. I think this afghan would be fun to play with.
Get the free pattern and diagram at http://thecrochetcrowd.com/crochet-bright-zig-zag-afghan/