Wowser you got a very nice Kit. The Clearomizers are rebuildable. Here's the spare heads:
Vision Ego Rainbow V3 Spare Heads (Long Wick) £2.50 - Vaping Spares - Cartomisers Electronic Cigarettes | Vaping Devices | Accessories | E-Liquid
Clearomizer (includes the Stardust and the Vivi Nova)- a plastic or metal tank with a wick and element. Contains NO stuffing. The rebuildable clearos come with heads (coil+ wick) that can be cheaply and easily replaced. When the head burns out simply unscrew the old head out and screw in new head- takes 10 secs. My Vivi Nova heads are lasting about 4 weeks BUT I wash the heads every few days.
Give me a few minutes and I'll find a vid for cleaning and dry burning.
Credit to Chrissie as she was the one who opened my eyes to Vape Escape and since recommending him I've heard nothing but good things about Jason and VE.
As for people looking at you it's mostly curiosity and eventually you'll get used to it. Well worth it considering the extra power you now have.
Again congrats and Happy Vaping.
Edit: Although this vid is for the Vivi Nova it's the same idea- when you clean the Clearo be very careful to not lose the small metal piece in the top silicon cap near the mouthpiece- can easily go down a drain.
Double Edit: Although I've been surfing the net for 15+ yrs I'm still so amazed everyday at how easily we can all communicate no matter where we live.