Baby Proofing: How the Heck Do You Make That Safe?

We've lowered the crib mattress all the way and put on the gummy rail-protector so when she grows some teeth she won't be biting bits off it. We've put covers on the doorknobs and in the outlets. I even picked up some Velcro cable ties to try and keep long wires out of her way.
Here are some things I'm still puzzled by:
- how to keep her from unplugging things
- what to do about smaller pieces of furniture (chairs, end tables) that she can move while sitting on the ground
- how to keep her out of the dog's bed/toys/crate/food/water, without effectively punishing the dog

If anyone has any suggestions, I'd love to hear them.