Inspired by this post, I thought I'd add my own 2 cents. By the way, I LOVE that site. Always good for a laugh so check it out if you get a chance.
Before I was a mom...
Then: I swore I would never let my kids throw a tantrum in a restaurant or other public place and let them get away with it.
Now: I don't allow her to get away with it, we deal with it ASAP and if necessary remove her, as even though I AM a mother and understand that children are children and you can't stop these things from happening, I don't have to let it continue and torture all the poor unsuspecting people at the store or whatever. I will add, that thankfully Lily is EASY, easy to distract, she loves to go out so this is (thankfully) rarely a problem for us.
Then: I swore I would never let my kid drink pop
Now: She doesn't drink pop for 2 reasons, 1. She plain doesn't like it (Adam has tried to give her some) and 2. She is only 2.5, when she's older I'll be ok with it at holidays and such but still not on a regular basis.
Then: I swore I would never let her run around in just her diaper.
Now: While it still DRIVES ME INSANE, she prefers it and I have learned to pick my battles. If my kid wants to run around in a t-shirt and a diaper I guess I'd rather her do that then fight with her about why she has to wear pants. I'm hoping she grows out of this soon though.
Then: I swore she would never sleep in our bed with us
Now: I still don't allow it. I won't sleep, Adam won't sleep and Lily wouldn't sleep well. Sometimes if she's really upset we do let her come in our room and settle down a bit but she goes back to her bed to sleep. I am anti-co-sleeping and it's one of the few things I don't think I'll ever fully understand the appeal of. Now, don't think that means I think it's wrong if someone else does it, that's not what I'm trying to say. Just more of the, I don't get why anyone would WANT to do it.
Overall I'm pretty laid back and try not to say "I will never let my kid do x" Cause really you never know what you'll do when you are in someone else's shoes.
These days I totally bribe her with things ALL the time. "If we go inside Lily, we can watch some Dora" Or "Take a few more bites of your dinner and then we'll have some dessert" Sure a lot of times dessert is just an apple or some oranges or something like that, but it's SO not the point.
So tell me, What do YOU do now as a parent that you thought you never would?