Mannequins and dolls freak me out. I'm better about it now then when I was a kid. When I was a kid I didn't own any dolls. I just had stuffed animals and Star Wars action figures. After a while, I could deal w/Barbie too. I actually collect dolls now, but they have to meet a particular criteria of non-creepiness before I'll consider them.
The dark doesn't bother me, except for walking into things, but growing up I had to share a room with my mom who watched TV when she went to bed and had a night light in the room. Now I can't sleep if it's too dark or quiet. I got one of the noise machines. I now have a mini light string of jack-o-lanterns to light up. It's great when I need a fix.