My pleasure, sincerely. NLV has been the mainstay for me for 4 years now. I'm thrilled you're enjoying it, too.
So we've finally reached the cotton undies discussion, eh?

Why am I picturing you vodka soaking all those tighty whities in Grey Goose. Oh mai. Laundry at newyork's place!!
What did you use in your before life? No coils whatsoever? Kartos, perhaps?
I don't really know the longevity for other people, but my koils seem to last for a LONG time. I really need someone to help me make a PIVOT TABLE or something so I can even begin to figure out just how many new koils I employ in a month's time. I think it's actually fewer than few!
With your love of flava changing, why not dedicate a Kabook to each one? Or..... are there THAT many?