I have no fashion sense. None. I only ever wear black, and the only colour in my outfits is usually the prints on my teeshirts - all bar one are Transformers related [the bar one is a zombie one ^__^]
I know the basics, don't mix primary colours, don't wear different prints top and bottom, don't mix horizontal and vertical lines, don't wear tights as pants, don't wear socks with sandals.
Plus, its hard to find good, modest clothing in my size. I mean, who thinks an outfit that looks great at size 10 would translate well to someone who's a size 26. [I'm not that big, I'm just using as an example, because that seems to be the trend, at least down here, common splice.
This year there is a really strange thing happening where there are mixed prints in some outfits. I do not get how to do it and I would nto try but some places are showing it as a statement.