"Lucy, I said NO!"

My saucy, saucy girl...  Sadly, the time has come for us to start disciplining.  As much as that daycare report comment annoyed me, I know that your teacher has a point.  Biting has, without doubt, been our biggest problem - but certainly not the only problematic behavior.  You constantly test us to see what you can and cannot get away with...climbing the stairs, grabbing the night light, turning the humidifier on and off, hitting, scratching, throwing things...  (I guess I can stop there.  You get the point, right?) 

Prior to your 15 month check-up, we had only used our "firm" voices to deter bad behavior.  That was it.  We would repeat ourselves over and over and over again. 
Lucy, no. 
No, Lucy, that's not a toy. 
Lucy...I said stop.

Until I'd finally snap and yell, Lucy, I said NO!!!  (Mother of the Year, I know...)

Dr. P suggested the use of 1-2-3 Magic, time-out, and a (gentle) tap on the mouth for biting.  Not having read 1-2-3 Magic, I can only reiterate the concept that Dr. P shared with us:
You are given three chances to stop the bad behavior before there are consequences.  Using our "firm" voices, we say why the behavior is wrong and that it's the first/second/third warning.  After the third warning, if you persist, the activity is over.  We remove you from the room and redirect your attention.  

1-2-3 Magic is meant for children ages 2-12 years, and uses time-out as a consequence for all bad behaviors; but we've reserved time-outs for biting only.  (I think Lu has had two total...)  And we decided that the tap on the mouth wasn't for us.  We primarily try to anticipate and avoid situations that we know will provoke bad behavior, but when that's not possible, we ultimately have to remove and redirect.  Even though that occasionally means enduring a tantrum...  But I can ignore handle tantrums.

I'd love to hear from other moms on the subject.  What methods are you using (or planning to use) to discipline your kiddos?