Hey, we're not saying you couldn't wear white into the fall and winter, but a white sundress might be a little iffy. Since it's all of, oh, about 100 degrees here in sunny southern California, it's the perfect time to snap a little white dress and wear it until you can't wear it no more. And there is certainly no need to spring for a super expensive fabric - cotton is the coolest fabric of them all. Bluefly has them all right here - summer dresses in white. My personal favorite? Why the strapless white eyelet minidress from Susana Monaco, called "Sarah." ($222)