I know you can have a closed group, but I prefer something open like this thread where people can stumble across it by accident, lurk without feeling too shy to join, etc. Just personal preference :)
Neeps, something I found helpful with things like slamming doors, throwing things, is trying to turn the sentence around. So instead of don't slam the door, or stop throwing, I try to remember to say "Close the door gently/quietly/slowly/carefully" or "Kick the ball" (when his kick was quite feeble and not dangerous - more often I say "Roll the ball" now)
On getting dressed there was a bit of a discussion up thread about that - upshot is, I try to leave as long as possible to get DS dressed. If I rush him, he fights against it. If we have loads of time he doesn't seem to as much. This morning I ended up really screaming because we were 40 minutes late for the childminder after he decided he didn't like dungarees and needed to wear some other trousers but then refused to let me put them on either, and wouldn't let me choose his t shirt but refused to choose as well and aaaaargh. :( We got there in the end, but it was my fault because I was trying to get him ready really quickly and I shouldn't have attempted the dungarees really unless we had more time.
EauRouge DS is exactly the same - hates having his nappy changed but isn't ready to potty train yet. It's so frustrating :(
I do bribe sometimes but I prefer to think about it as modelling negotiation
- so I try not to do e.g. if you do X you can have a chocolate button, but something like "Okay, if you do X for me, I will do Y for you. Does that sound fair?" Actually I'm not sure if that is any different... I should get back to my essay anyway.
Re slings, I have a Toddler Patapum which is slightly bigger and more supportive than the Ergo. I love it. To the person who was asking about the shoulders slipping off, do you not have the extra chest clip on yours? That's designed to stop the shoulders pulling off sideways.