The Merits of Kajal
I adore it, and love the effortless smoky eye look that it helps accomplish.
If you're looking for a tube of it, Barry M has released their own version but there are numerous versions available for less than a fiver on ebay! The best ones, however, can be found at Asian beauticians in places such as Longsight or Levenshulme (If you're in Manchester) as kajal is traditionally South Asian.
The one I use is from a brand called Saffron - you can find it on Amazon!