We may have thought we were the first to discover blue mascara, but it was already a retro throwback, with thanks to our Gen X '80s pals who set the trend. In the '90s, the cool way to wear your Collection Colour Lash Mascara (£1.99) was on only the tips of the lashes, applied after a couple of coats of classic black. Extra points if you also experimented with white mascara on the lower lashes. Yep, remember when that seemed like a good idea?