Smacking. They did, we don't.
Clean your plate. Again, they did, we don't. I've tried to un-train myself to clean my plate because I am overweight, but not had too much success.
I can't really cite what my parents did or didn't do to make me feel this way, but I definitely felt that they only loved me if I was doing well in school. I make sure to tell DD that I love her and will never be disappointed in her, no matter what.
My DM was very interested in how I dressed, wore my hair, etc, into my teens. I'm already letting DD wear the outfit she picks even if I don't like it (she's 2.5). She likes to wear red and purple together. I'm not planning to fight on any appearance-related things except for permanent changes (no tattoos, but makeup, hair coloring, and hair style are up to her, since makeup washes off and hair grows out).
I remember my DM saying I couldn't have electronic toys because "those are for boys". There are no toys that are only for one gender in our house. We're expecting a DS in July, and if he someday wants to play dress-up with his sister's clothes, the answer is yes.
My DM was determined that my sister and I should go to church every week during the school year. I've converted to Judaism. People who are post bar-mitzvah age (13 or older) get to decide their own level of religious observance, if any, at least so far as that does not interfere in anyone else's choice of observance level (ie, having bacon cheeseburgers in the house isn't OK, because we have kosher dishes, but having them out at a restaurant would be OK)
The religious observance that did happen in our household was mostly of the "dress up, get up early on Sunday, and sit still for this service" type. I'm trying to make sure my DD's experience with Judaism is a lot less of that and a lot more fun. We're not doing a lot of the "you can't do this or that because it's Shabbat" type stuff.