When it comes to mascaras the cosmetic companies mainly have the upper hand. There's no way of trying out the product before you buy so a lot of the time its hit or miss, which can be rather frustrating.
Sometimes more high end companies offer a free sample of their newest mascaras, I think this is perfect as often they can be a bit more expensive than their drug store competition.
From Saturday 14th January 2012 take in any full-size old mascara to a Boots Clinique counter and you'll be given a deluxe Clinique mascara sample in exchange!
There's a choice of two mascara samples:
High Lengths (5ml)
and High Impact (4ml)
They're about half the size of the normal ones (7 and 8ml).
Good luck and fingers crossed they'll be enough to go around :)