Apart from the Barbie Basics, which were a) expensive and b) discontinued I think, there are no fashion packs with just regular clothes. Nope, it's all glitter and weird prints that don't even go all the way around, and if you buy an expensive fully dressed doll the clothes are usually designed to fill a specific function in that outfit and you'll be lucky if there's one or two pieces that don't look out of place on their own (if they're even separate pieces, that is!). Finding affordable fabric, particularly denim, that's thin enough to work in 1/6 scale is a chore, and anyway I'm crap at sewing.
That's all I wanted to say really. On the other hand I found some good stuff at the thrift store yesterday, I'll post when I've gone through and cleaned it.