Being on a car trip with my non-smoking sister and not having to stop every couple hours for a smoke-break...just vape continuously in the car. With no complaints from my sister!!! 
I don't know if it counts, but my favorite vaping experience comes from laying in bed late at night and taking an UNBELIVEABLY deep breath with out hearing the crackle, gurgle and hack. It's truly liberating to have control over my body again and not being limited by my breathing.![]()
My favorite exp. so far has been having a vape in the main office of our store and declaring that I wouldn't be outside with the smokers when the temperatures smack down to -40C. One my bosses and I engaged in a debate about why I couldn't do it in the office and eventually he caved with 'not much I can do I guess, it's vapor'. Victory.
He could just nut up and tell me I couldn't. I would have to comply as he's my boss, but it's nice to know people can be convinced to accept vaping indoors and not forcing us outside.
Vape on!
My favorite moment so far: when I first took my pv to work sitting in the lunch room happily vaping away with my coffee while all the smokers that I used to sit with were outside in the rain looking very miserable.
Being able to laugh without going into a 10 minute coughing fit...