L-O-N-G acrylic nails. How can people still be wearing them? OK, they're not as popular as they used to be, but I still see them and all I can think about is all the microbes under them. Nasty!
Gold chains on men. Have always hated them. It's a very redneck look where I come from.
The brown-and-turquoise combination. Not that I don't like it, I'm just really tired of it, and it will be totally dated by the end of summer. I wish stores didn't only have clothes in the current fad colors.
Logos on anything. Logo purses look very 80s to me (I guess they're suposed to??) and I didn't like them in the 80s, either.