I guess I am in the minority here. I dress up a lot for work and look professional, even on Fridays. I don't necessarily look extremely conservative, though, because I like to look like I have a decent shape under all those clothes. I can't stand to feel frumpy. But I also won't dress in something too young for me.
I think Lands' End and LLBean are too boring and not tailored enough for me to be happy in. Eddie Bauer is OK for very casual stuff. I love Jones New York, and INC at Macy's. They are my two favs.
I tend to have fun with my shoes, though. I always love getting new shoes! I just got a new pair of leopard print slides. They look great with black pants.
I wear black almost every day. I think it's a New York thing.....I just tell people it's my new spring color!