Huge welcome to our little community here -
Your story is similar to mine - well the part about when you started, how long you used, and how it repulsed your wife when she "busted" you. However, I never had the courage to spill the beans to my kids. My son is 10 - he thinks I walk on water. I'll be honest, i don't have the courage to tell him about my addiction. As a ninja dipper, he never saw me. I did it around my 5-year old but was very discreet about spitting so she never realized it other than asking me about the "candy smell" in the room (Grizzly WINTERGREEN). Anyway, I commend you for this. I have often thought about an approach to take with my kids thinking maybe a good idea to tell them about this addiction so that hopefully they steer clear of it.
Anyway, back to your quit. You have made the right choice. If I can do it, you can do it. I quit on July 28, 2011 and posted day 103 today. It's not easy but if you spend a great deal of time on this website, drink the koolaid, utilize the support system, and keep your promise, there is no way you will cave. Simple as that. Get past the first few days and then it simply becomes a mental struggle. Telling your daughter about it was huge because you will certainly not want to let her down - talk about accountability.
I, too, had a long business trip right around when I first started when I would literally never remove the dip from my face. People have different beliefs in this regard but for me, I made it a point to actually stop in a few convenience stores and look Grizzly and his buddies in the eye and actually verbalize my disdain toward it. It was therapeutic. I did this several times. Get phone numbers for your trip. When you are having a tough time, text or call someone.
And bottom line, when you are having a crave, don't dip, just do something else. Simple as that.
Good job and welcome again - trust me, if you want it bad enough, you WILL succeed. If I can do it, you can definitely do it.